tags:

views:

2921

answers:

7
+2  Q: 

SQL code to insert multiple rows in ms-access table

I'm trying to speed up my code and the bottleneck seems to be the individual insert statements to a Jet MDB from outside Access via ODBC. I need to insert 100 rows at a time and have to repeat that many times.

It is possible to insert multiple rows in a table with SQL code? Here is some stuff that I tried but neither of them worked. Any suggestions?

INSERT INTO tblSimulation (p, cfYear, cfLocation, Delta, Design, SigmaLoc,
                                Sigma, SampleSize, Intercept) VALUES 
(0, 2, 8.3, 0, 1, 0.5, 0.2, 220, 3.4),
(0, 2.4, 7.8, 0, 1, 0.5, 0.2, 220, 3.4), 
(0, 2.3, 5.9, 0, 1, 0.5, 0.2, 220, 3.4)


INSERT INTO tblSimulation (p, cfYear, cfLocation, Delta, Design, SigmaLoc,
                                Sigma, SampleSize, Intercept) VALUES 
(0, 2, 8.3, 0, 1, 0.5, 0.2, 220, 3.4) UNION
(0, 2.4, 7.8, 0, 1, 0.5, 0.2, 220, 3.4) UNION 
(0, 2.3, 5.9, 0, 1, 0.5, 0.2, 220, 3.4)
+1  A: 

Not that I am aware of. And I have felt this pain before. The good news is that if you wrap the insert in a transaction and don't close the connection between each call (eg--pass the command as a parameter) then it is orders of magnitude quicker than open()->INSERT->close() is.

Use a code pattern something like:

using (DbConnection conn = new OdbcConnection())
using (DbCommand cmd = conn.CreateCommand())
{
    cmd.CommandText = "INSERT INTO foo(bar) VALUES (@bar)";
    DbParameter p = cmd.CreateParameter();
    p.ParameterName = "@bar";
    cmd.CommandType = CommandType.Text;
    conn.Open();
    using (DbTransaction tran = conn.BeginTransaction())
    {
        cmd.Transaction = tran;
        try
        {
            for (int i = 0; i < 1000; i++)
            {
                p.Value = i;
                cmd.ExecuteNonQuery();
            }
            tran.Commit();
            conn.Close();
        }
        catch (Exception)
        {
            tran.Rollback();
            throw;
        }
    }
}
Wyatt Barnett  2009-07-31 14:49:23
When I try the SQL command "BEGIN TRANSACTION;" the ODBC driver return an error: Ilegal SQL-instruction. DELETE, INSERT, PROCEDURE, SELECT or UPDATE expected.So transactions don't work through ODBC?
Thierry  2009-07-31 15:21:40
Don't add them to your SQL command, us a transaction in your app. I'll update my answer.
Wyatt Barnett  2009-07-31 15:27:44
Thanks. Now it works. With 20.000 rows I got a speed gain of about 16%.
Thierry  2009-07-31 15:37:39
-1 "Not that I am aware of" maybe but it is possible. See my answer ;)
onedaywhen  2009-08-02 06:38:07
+1  A: 

Do you have to use SQL? If not, you'll probably get better performance if you insert rows using a recordset:

Set rs=db.OpenRecordset("tblSimulation", dbOpenDynaset)
With rs
    .AddNew
    !p=0
    !cfYear=2
    ' And so on
    .Update
End With
Martin B  2009-07-31 14:54:04
I am connecting to the mdb from outside Access through ODBC. That's why I use SQL
Thierry  2009-07-31 15:14:55
ODBC wouldn't affect this. (At least not that I know. I'm always ready to learn about another quirk with ODBC.)
Smandoli  2009-08-01 21:18:10
A: 

Is it possible to write the lines to a textfile? You can insert all the lines from that with ADO.

db = "C:\Docs\ltd.mdb"

Set cn = CreateObject("ADODB.Connection")

cn.Open "Provider = Microsoft.Jet.OLEDB.4.0; " & _
   "Data Source =" & db

sSQL = "INSERT INTO New (id,schedno) " _
& "SELECT id,schedno FROM [new.txt] IN '' " _
& "'text;HDR=Yes;FMT=Delimited;database=C:\Docs\';"

cn.Execute sSQL
Remou  2009-07-31 15:36:44
A: 

The VALUES keyword is for single-record appends. You can insert multiple records from source_table using the SELECT keyword: 

INSERT INTO target_table ( field1, field2, .... )
   SELECT field1, field2, ....
   FROM source_table;

So if your values are coming from a table or query, you should be good. And if they aren't, maybe you can get them into a table?

Smandoli  2009-08-01 21:15:36
Oh, I see Remou also reaches for the SELECT keyword. Using it to grab a text file is very interesting!
Smandoli  2009-08-01 21:16:49
A: 

You need a table that is guaranteed to contain at least one row (exactly one row is best, in which case you can omit the DISTINCT keyword). Here I'm using my standard issue auxiliary table Calendar. Within the derived table DT1, you must supply column correlation names (colloquially 'aliases') for the first appearance only:

INSERT INTO tblSimulation (p, cfYear, cfLocation, [Delta], Design, SigmaLoc,
                                Sigma, SampleSize, Intercept) 
SELECT DT1.p, DT1.cfYear, DT1.cfLocation, 
       DT1.Delta, DT1.Design, DT1.SigmaLoc,
       DT1.Sigma, DT1.SampleSize, DT1.Intercept
  FROM (
        SELECT DISTINCT 0 AS p, 2 AS cfYear, 8.3 AS cfLocation, 
               0 AS Delta, 1 AS Design, 0.5 AS SigmaLoc, 
               0.2 AS Sigma, 220 AS SampleSize, 3.4 AS Intercept
          FROM Calendar
        UNION ALL
        SELECT DISTINCT 0, 2.4, 7.8, 
               0, 1, 0.5, 
               0.2, 220, 3.4
          FROM Calendar
        UNION ALL
        SELECT DISTINCT 0, 2.3, 5.9, 
               0, 1, 0.5, 
               0.2, 220, 3.4
          FROM Calendar
       ) AS DT1;

Now for the bad news: you can only create 49 UNION ALLs in a single query after which the Access database engine whines it is 'too complex'.

Dynamic SQL is to be avoided in favour of a stored procedure and anyhow the column correlation names in the derived table makes dynamic SQL a pain for this kind of construct. So here's a example using a proc with 49 * 9 = 441 parameters to create up to 49 rows in a single execution.

Someone asked about performance. Well, this proc creates 49 rows in around 100 milliseconds on my machine

Schema:

CREATE TABLE OneRowTable
(
   lock CHAR(1) DEFAULT 'x' NOT NULL PRIMARY KEY, 
   CONSTRAINT OneRowTable__lock CHECK (lock = 'x')
)
;
INSERT INTO OneRowTable (lock) VALUES ('x')
;
CREATE TABLE tblSimulation
(
 p DECIMAL(19,4), 
 cfYear DECIMAL(19,4), 
 cfLocation DECIMAL(19,4), 
 Delta DECIMAL(19,4), 
 Design DECIMAL(19,4), 
 SigmaLoc DECIMAL(19,4), 
 Sigma DECIMAL(19,4), 
 SampleSize DECIMAL(19,4), 
 Intercept DECIMAL(19,4)
)
;
CREATE PROCEDURE Add100Simulations
(
 :001_1 DECIMAL(19, 4) = NULL,
 :001_2 DECIMAL(19, 4) = NULL,
 :001_3 DECIMAL(19, 4) = NULL,
 :001_4 DECIMAL(19, 4) = NULL,
 :001_5 DECIMAL(19, 4) = NULL,
 :001_6 DECIMAL(19, 4) = NULL,
 :001_7 DECIMAL(19, 4) = NULL,
 :001_8 DECIMAL(19, 4) = NULL,
 :001_9 DECIMAL(19, 4) = NULL,
 :002_1 DECIMAL(19, 4) = NULL,
 :002_2 DECIMAL(19, 4) = NULL,
 :002_3 DECIMAL(19, 4) = NULL,
 :002_4 DECIMAL(19, 4) = NULL,
 :002_5 DECIMAL(19, 4) = NULL,
 :002_6 DECIMAL(19, 4) = NULL,
 :002_7 DECIMAL(19, 4) = NULL,
 :002_8 DECIMAL(19, 4) = NULL,
 :002_9 DECIMAL(19, 4) = NULL,
 :003_1 DECIMAL(19, 4) = NULL,
 :003_2 DECIMAL(19, 4) = NULL,
 :003_3 DECIMAL(19, 4) = NULL,
 :003_4 DECIMAL(19, 4) = NULL,
 :003_5 DECIMAL(19, 4) = NULL,
 :003_6 DECIMAL(19, 4) = NULL,
 :003_7 DECIMAL(19, 4) = NULL,
 :003_8 DECIMAL(19, 4) = NULL,
 :003_9 DECIMAL(19, 4) = NULL,
 :004_1 DECIMAL(19, 4) = NULL,
 :004_2 DECIMAL(19, 4) = NULL,
 :004_3 DECIMAL(19, 4) = NULL,
 :004_4 DECIMAL(19, 4) = NULL,
 :004_5 DECIMAL(19, 4) = NULL,
 :004_6 DECIMAL(19, 4) = NULL,
 :004_7 DECIMAL(19, 4) = NULL,
 :004_8 DECIMAL(19, 4) = NULL,
 :004_9 DECIMAL(19, 4) = NULL,
 :005_1 DECIMAL(19, 4) = NULL,
 :005_2 DECIMAL(19, 4) = NULL,
 :005_3 DECIMAL(19, 4) = NULL,
 :005_4 DECIMAL(19, 4) = NULL,
 :005_5 DECIMAL(19, 4) = NULL,
 :005_6 DECIMAL(19, 4) = NULL,
 :005_7 DECIMAL(19, 4) = NULL,
 :005_8 DECIMAL(19, 4) = NULL,
 :005_9 DECIMAL(19, 4) = NULL,
 :006_1 DECIMAL(19, 4) = NULL,
 :006_2 DECIMAL(19, 4) = NULL,
 :006_3 DECIMAL(19, 4) = NULL,
 :006_4 DECIMAL(19, 4) = NULL,
 :006_5 DECIMAL(19, 4) = NULL,
 :006_6 DECIMAL(19, 4) = NULL,
 :006_7 DECIMAL(19, 4) = NULL,
 :006_8 DECIMAL(19, 4) = NULL,
 :006_9 DECIMAL(19, 4) = NULL,
 :007_1 DECIMAL(19, 4) = NULL,
 :007_2 DECIMAL(19, 4) = NULL,
 :007_3 DECIMAL(19, 4) = NULL,
 :007_4 DECIMAL(19, 4) = NULL,
 :007_5 DECIMAL(19, 4) = NULL,
 :007_6 DECIMAL(19, 4) = NULL,
 :007_7 DECIMAL(19, 4) = NULL,
 :007_8 DECIMAL(19, 4) = NULL,
 :007_9 DECIMAL(19, 4) = NULL,
 :008_1 DECIMAL(19, 4) = NULL,
 :008_2 DECIMAL(19, 4) = NULL,
 :008_3 DECIMAL(19, 4) = NULL,
 :008_4 DECIMAL(19, 4) = NULL,
 :008_5 DECIMAL(19, 4) = NULL,
 :008_6 DECIMAL(19, 4) = NULL,
 :008_7 DECIMAL(19, 4) = NULL,
 :008_8 DECIMAL(19, 4) = NULL,
 :008_9 DECIMAL(19, 4) = NULL,
 :009_1 DECIMAL(19, 4) = NULL,
 :009_2 DECIMAL(19, 4) = NULL,
 :009_3 DECIMAL(19, 4) = NULL,
 :009_4 DECIMAL(19, 4) = NULL,
 :009_5 DECIMAL(19, 4) = NULL,
 :009_6 DECIMAL(19, 4) = NULL,
 :009_7 DECIMAL(19, 4) = NULL,
 :009_8 DECIMAL(19, 4) = NULL,
 :009_9 DECIMAL(19, 4) = NULL,
 :010_1 DECIMAL(19, 4) = NULL,
 :010_2 DECIMAL(19, 4) = NULL,
 :010_3 DECIMAL(19, 4) = NULL,
 :010_4 DECIMAL(19, 4) = NULL,
 :010_5 DECIMAL(19, 4) = NULL,
 :010_6 DECIMAL(19, 4) = NULL,
 :010_7 DECIMAL(19, 4) = NULL,
 :010_8 DECIMAL(19, 4) = NULL,
 :010_9 DECIMAL(19, 4) = NULL,
 :011_1 DECIMAL(19, 4) = NULL,
 :011_2 DECIMAL(19, 4) = NULL,
 :011_3 DECIMAL(19, 4) = NULL,
 :011_4 DECIMAL(19, 4) = NULL,
 :011_5 DECIMAL(19, 4) = NULL,
 :011_6 DECIMAL(19, 4) = NULL,
 :011_7 DECIMAL(19, 4) = NULL,
 :011_8 DECIMAL(19, 4) = NULL,
 :011_9 DECIMAL(19, 4) = NULL,
 :012_1 DECIMAL(19, 4) = NULL,
 :012_2 DECIMAL(19, 4) = NULL,
 :012_3 DECIMAL(19, 4) = NULL,
 :012_4 DECIMAL(19, 4) = NULL,
 :012_5 DECIMAL(19, 4) = NULL,
 :012_6 DECIMAL(19, 4) = NULL,
 :012_7 DECIMAL(19, 4) = NULL,
 :012_8 DECIMAL(19, 4) = NULL,
 :012_9 DECIMAL(19, 4) = NULL,
 :013_1 DECIMAL(19, 4) = NULL,
 :013_2 DECIMAL(19, 4) = NULL,
 :013_3 DECIMAL(19, 4) = NULL,
 :013_4 DECIMAL(19, 4) = NULL,
 :013_5 DECIMAL(19, 4) = NULL,
 :013_6 DECIMAL(19, 4) = NULL,
 :013_7 DECIMAL(19, 4) = NULL,
 :013_8 DECIMAL(19, 4) = NULL,
 :013_9 DECIMAL(19, 4) = NULL,
 :014_1 DECIMAL(19, 4) = NULL,
 :014_2 DECIMAL(19, 4) = NULL,
 :014_3 DECIMAL(19, 4) = NULL,
 :014_4 DECIMAL(19, 4) = NULL,
 :014_5 DECIMAL(19, 4) = NULL,
 :014_6 DECIMAL(19, 4) = NULL,
 :014_7 DECIMAL(19, 4) = NULL,
 :014_8 DECIMAL(19, 4) = NULL,
 :014_9 DECIMAL(19, 4) = NULL,
 :015_1 DECIMAL(19, 4) = NULL,
 :015_2 DECIMAL(19, 4) = NULL,
 :015_3 DECIMAL(19, 4) = NULL,
 :015_4 DECIMAL(19, 4) = NULL,
 :015_5 DECIMAL(19, 4) = NULL,
 :015_6 DECIMAL(19, 4) = NULL,
 :015_7 DECIMAL(19, 4) = NULL,
 :015_8 DECIMAL(19, 4) = NULL,
 :015_9 DECIMAL(19, 4) = NULL,
 :016_1 DECIMAL(19, 4) = NULL,
 :016_2 DECIMAL(19, 4) = NULL,
 :016_3 DECIMAL(19, 4) = NULL,
 :016_4 DECIMAL(19, 4) = NULL,
 :016_5 DECIMAL(19, 4) = NULL,
 :016_6 DECIMAL(19, 4) = NULL,
 :016_7 DECIMAL(19, 4) = NULL,
 :016_8 DECIMAL(19, 4) = NULL,
 :016_9 DECIMAL(19, 4) = NULL,
 :017_1 DECIMAL(19, 4) = NULL,
 :017_2 DECIMAL(19, 4) = NULL,
 :017_3 DECIMAL(19, 4) = NULL,
 :017_4 DECIMAL(19, 4) = NULL,
 :017_5 DECIMAL(19, 4) = NULL,
 :017_6 DECIMAL(19, 4) = NULL,
 :017_7 DECIMAL(19, 4) = NULL,
 :017_8 DECIMAL(19, 4) = NULL,
 :017_9 DECIMAL(19, 4) = NULL,
 :018_1 DECIMAL(19, 4) = NULL,
 :018_2 DECIMAL(19, 4) = NULL,
 :018_3 DECIMAL(19, 4) = NULL,
 :018_4 DECIMAL(19, 4) = NULL,
 :018_5 DECIMAL(19, 4) = NULL,
 :018_6 DECIMAL(19, 4) = NULL,
 :018_7 DECIMAL(19, 4) = NULL,
 :018_8 DECIMAL(19, 4) = NULL,
 :018_9 DECIMAL(19, 4) = NULL,
 :019_1 DECIMAL(19, 4) = NULL,
 :019_2 DECIMAL(19, 4) = NULL,
 :019_3 DECIMAL(19, 4) = NULL,
 :019_4 DECIMAL(19, 4) = NULL,
 :019_5 DECIMAL(19, 4) = NULL,
 :019_6 DECIMAL(19, 4) = NULL,
 :019_7 DECIMAL(19, 4) = NULL,
 :019_8 DECIMAL(19, 4) = NULL,
 :019_9 DECIMAL(19, 4) = NULL,
 :020_1 DECIMAL(19, 4) = NULL,
 :020_2 DECIMAL(19, 4) = NULL,
 :020_3 DECIMAL(19, 4) = NULL,
 :020_4 DECIMAL(19, 4) = NULL,
 :020_5 DECIMAL(19, 4) = NULL,
 :020_6 DECIMAL(19, 4) = NULL,
 :020_7 DECIMAL(19, 4) = NULL,
 :020_8 DECIMAL(19, 4) = NULL,
 :020_9 DECIMAL(19, 4) = NULL,
 :021_1 DECIMAL(19, 4) = NULL,
 :021_2 DECIMAL(19, 4) = NULL,
 :021_3 DECIMAL(19, 4) = NULL,
 :021_4 DECIMAL(19, 4) = NULL,
 :021_5 DECIMAL(19, 4) = NULL,
 :021_6 DECIMAL(19, 4) = NULL,
 :021_7 DECIMAL(19, 4) = NULL,
 :021_8 DECIMAL(19, 4) = NULL,
 :021_9 DECIMAL(19, 4) = NULL,
 :022_1 DECIMAL(19, 4) = NULL,
 :022_2 DECIMAL(19, 4) = NULL,
 :022_3 DECIMAL(19, 4) = NULL,
 :022_4 DECIMAL(19, 4) = NULL,
 :022_5 DECIMAL(19, 4) = NULL,
 :022_6 DECIMAL(19, 4) = NULL,
 :022_7 DECIMAL(19, 4) = NULL,
 :022_8 DECIMAL(19, 4) = NULL,
 :022_9 DECIMAL(19, 4) = NULL,
 :023_1 DECIMAL(19, 4) = NULL,
 :023_2 DECIMAL(19, 4) = NULL,
 :023_3 DECIMAL(19, 4) = NULL,
 :023_4 DECIMAL(19, 4) = NULL,
 :023_5 DECIMAL(19, 4) = NULL,
 :023_6 DECIMAL(19, 4) = NULL,
 :023_7 DECIMAL(19, 4) = NULL,
 :023_8 DECIMAL(19, 4) = NULL,
 :023_9 DECIMAL(19, 4) = NULL,
 :024_1 DECIMAL(19, 4) = NULL,
 :024_2 DECIMAL(19, 4) = NULL,
 :024_3 DECIMAL(19, 4) = NULL,
 :024_4 DECIMAL(19, 4) = NULL,
 :024_5 DECIMAL(19, 4) = NULL,
 :024_6 DECIMAL(19, 4) = NULL,
 :024_7 DECIMAL(19, 4) = NULL,
 :024_8 DECIMAL(19, 4) = NULL,
 :024_9 DECIMAL(19, 4) = NULL,
 :025_1 DECIMAL(19, 4) = NULL,
 :025_2 DECIMAL(19, 4) = NULL,
 :025_3 DECIMAL(19, 4) = NULL,
 :025_4 DECIMAL(19, 4) = NULL,
 :025_5 DECIMAL(19, 4) = NULL,
 :025_6 DECIMAL(19, 4) = NULL,
 :025_7 DECIMAL(19, 4) = NULL,
 :025_8 DECIMAL(19, 4) = NULL,
 :025_9 DECIMAL(19, 4) = NULL,
 :026_1 DECIMAL(19, 4) = NULL,
 :026_2 DECIMAL(19, 4) = NULL,
 :026_3 DECIMAL(19, 4) = NULL,
 :026_4 DECIMAL(19, 4) = NULL,
 :026_5 DECIMAL(19, 4) = NULL,
 :026_6 DECIMAL(19, 4) = NULL,
 :026_7 DECIMAL(19, 4) = NULL,
 :026_8 DECIMAL(19, 4) = NULL,
 :026_9 DECIMAL(19, 4) = NULL,
 :027_1 DECIMAL(19, 4) = NULL,
 :027_2 DECIMAL(19, 4) = NULL,
 :027_3 DECIMAL(19, 4) = NULL,
 :027_4 DECIMAL(19, 4) = NULL,
 :027_5 DECIMAL(19, 4) = NULL,
 :027_6 DECIMAL(19, 4) = NULL,
 :027_7 DECIMAL(19, 4) = NULL,
 :027_8 DECIMAL(19, 4) = NULL,
 :027_9 DECIMAL(19, 4) = NULL,
 :028_1 DECIMAL(19, 4) = NULL,
 :028_2 DECIMAL(19, 4) = NULL,
 :028_3 DECIMAL(19, 4) = NULL,
 :028_4 DECIMAL(19, 4) = NULL,
 :028_5 DECIMAL(19, 4) = NULL,
 :028_6 DECIMAL(19, 4) = NULL,
 :028_7 DECIMAL(19, 4) = NULL,
 :028_8 DECIMAL(19, 4) = NULL,
 :028_9 DECIMAL(19, 4) = NULL,
 :029_1 DECIMAL(19, 4) = NULL,
 :029_2 DECIMAL(19, 4) = NULL,
 :029_3 DECIMAL(19, 4) = NULL,
 :029_4 DECIMAL(19, 4) = NULL,
 :029_5 DECIMAL(19, 4) = NULL,
 :029_6 DECIMAL(19, 4) = NULL,
 :029_7 DECIMAL(19, 4) = NULL,
 :029_8 DECIMAL(19, 4) = NULL,
 :029_9 DECIMAL(19, 4) = NULL,
 :030_1 DECIMAL(19, 4) = NULL,
 :030_2 DECIMAL(19, 4) = NULL,
 :030_3 DECIMAL(19, 4) = NULL,
 :030_4 DECIMAL(19, 4) = NULL,
 :030_5 DECIMAL(19, 4) = NULL,
 :030_6 DECIMAL(19, 4) = NULL,
 :030_7 DECIMAL(19, 4) = NULL,
 :030_8 DECIMAL(19, 4) = NULL,
 :030_9 DECIMAL(19, 4) = NULL,
 :031_1 DECIMAL(19, 4) = NULL,
 :031_2 DECIMAL(19, 4) = NULL,
 :031_3 DECIMAL(19, 4) = NULL,
 :031_4 DECIMAL(19, 4) = NULL,
 :031_5 DECIMAL(19, 4) = NULL,
 :031_6 DECIMAL(19, 4) = NULL,
 :031_7 DECIMAL(19, 4) = NULL,
 :031_8 DECIMAL(19, 4) = NULL,
 :031_9 DECIMAL(19, 4) = NULL,
 :032_1 DECIMAL(19, 4) = NULL,
 :032_2 DECIMAL(19, 4) = NULL,
 :032_3 DECIMAL(19, 4) = NULL,
 :032_4 DECIMAL(19, 4) = NULL,
 :032_5 DECIMAL(19, 4) = NULL,
 :032_6 DECIMAL(19, 4) = NULL,
 :032_7 DECIMAL(19, 4) = NULL,
 :032_8 DECIMAL(19, 4) = NULL,
 :032_9 DECIMAL(19, 4) = NULL,
 :033_1 DECIMAL(19, 4) = NULL,
 :033_2 DECIMAL(19, 4) = NULL,
 :033_3 DECIMAL(19, 4) = NULL,
 :033_4 DECIMAL(19, 4) = NULL,
 :033_5 DECIMAL(19, 4) = NULL,
 :033_6 DECIMAL(19, 4) = NULL,
 :033_7 DECIMAL(19, 4) = NULL,
 :033_8 DECIMAL(19, 4) = NULL,
 :033_9 DECIMAL(19, 4) = NULL,
 :034_1 DECIMAL(19, 4) = NULL,
 :034_2 DECIMAL(19, 4) = NULL,
 :034_3 DECIMAL(19, 4) = NULL,
 :034_4 DECIMAL(19, 4) = NULL,
 :034_5 DECIMAL(19, 4) = NULL,
 :034_6 DECIMAL(19, 4) = NULL,
 :034_7 DECIMAL(19, 4) = NULL,
 :034_8 DECIMAL(19, 4) = NULL,
 :034_9 DECIMAL(19, 4) = NULL,
 :035_1 DECIMAL(19, 4) = NULL,
 :035_2 DECIMAL(19, 4) = NULL,
 :035_3 DECIMAL(19, 4) = NULL,
 :035_4 DECIMAL(19, 4) = NULL,
 :035_5 DECIMAL(19, 4) = NULL,
 :035_6 DECIMAL(19, 4) = NULL,
 :035_7 DECIMAL(19, 4) = NULL,
 :035_8 DECIMAL(19, 4) = NULL,
 :035_9 DECIMAL(19, 4) = NULL,
 :036_1 DECIMAL(19, 4) = NULL,
 :036_2 DECIMAL(19, 4) = NULL,
 :036_3 DECIMAL(19, 4) = NULL,
 :036_4 DECIMAL(19, 4) = NULL,
 :036_5 DECIMAL(19, 4) = NULL,
 :036_6 DECIMAL(19, 4) = NULL,
 :036_7 DECIMAL(19, 4) = NULL,
 :036_8 DECIMAL(19, 4) = NULL,
 :036_9 DECIMAL(19, 4) = NULL,
 :037_1 DECIMAL(19, 4) = NULL,
 :037_2 DECIMAL(19, 4) = NULL,
 :037_3 DECIMAL(19, 4) = NULL,
 :037_4 DECIMAL(19, 4) = NULL,
 :037_5 DECIMAL(19, 4) = NULL,
 :037_6 DECIMAL(19, 4) = NULL,
 :037_7 DECIMAL(19, 4) = NULL,
 :037_8 DECIMAL(19, 4) = NULL,
 :037_9 DECIMAL(19, 4) = NULL,
 :038_1 DECIMAL(19, 4) = NULL,
 :038_2 DECIMAL(19, 4) = NULL,
 :038_3 DECIMAL(19, 4) = NULL,
 :038_4 DECIMAL(19, 4) = NULL,
 :038_5 DECIMAL(19, 4) = NULL,
 :038_6 DECIMAL(19, 4) = NULL,
 :038_7 DECIMAL(19, 4) = NULL,
 :038_8 DECIMAL(19, 4) = NULL,
 :038_9 DECIMAL(19, 4) = NULL,
 :039_1 DECIMAL(19, 4) = NULL,
 :039_2 DECIMAL(19, 4) = NULL,
 :039_3 DECIMAL(19, 4) = NULL,
 :039_4 DECIMAL(19, 4) = NULL,
 :039_5 DECIMAL(19, 4) = NULL,
 :039_6 DECIMAL(19, 4) = NULL,
 :039_7 DECIMAL(19, 4) = NULL,
 :039_8 DECIMAL(19, 4) = NULL,
 :039_9 DECIMAL(19, 4) = NULL,
 :040_1 DECIMAL(19, 4) = NULL,
 :040_2 DECIMAL(19, 4) = NULL,
 :040_3 DECIMAL(19, 4) = NULL,
 :040_4 DECIMAL(19, 4) = NULL,
 :040_5 DECIMAL(19, 4) = NULL,
 :040_6 DECIMAL(19, 4) = NULL,
 :040_7 DECIMAL(19, 4) = NULL,
 :040_8 DECIMAL(19, 4) = NULL,
 :040_9 DECIMAL(19, 4) = NULL,
 :041_1 DECIMAL(19, 4) = NULL,
 :041_2 DECIMAL(19, 4) = NULL,
 :041_3 DECIMAL(19, 4) = NULL,
 :041_4 DECIMAL(19, 4) = NULL,
 :041_5 DECIMAL(19, 4) = NULL,
 :041_6 DECIMAL(19, 4) = NULL,
 :041_7 DECIMAL(19, 4) = NULL,
 :041_8 DECIMAL(19, 4) = NULL,
 :041_9 DECIMAL(19, 4) = NULL,
 :042_1 DECIMAL(19, 4) = NULL,
 :042_2 DECIMAL(19, 4) = NULL,
 :042_3 DECIMAL(19, 4) = NULL,
 :042_4 DECIMAL(19, 4) = NULL,
 :042_5 DECIMAL(19, 4) = NULL,
 :042_6 DECIMAL(19, 4) = NULL,
 :042_7 DECIMAL(19, 4) = NULL,
 :042_8 DECIMAL(19, 4) = NULL,
 :042_9 DECIMAL(19, 4) = NULL,
 :043_1 DECIMAL(19, 4) = NULL,
 :043_2 DECIMAL(19, 4) = NULL,
 :043_3 DECIMAL(19, 4) = NULL,
 :043_4 DECIMAL(19, 4) = NULL,
 :043_5 DECIMAL(19, 4) = NULL,
 :043_6 DECIMAL(19, 4) = NULL,
 :043_7 DECIMAL(19, 4) = NULL,
 :043_8 DECIMAL(19, 4) = NULL,
 :043_9 DECIMAL(19, 4) = NULL,
 :044_1 DECIMAL(19, 4) = NULL,
 :044_2 DECIMAL(19, 4) = NULL,
 :044_3 DECIMAL(19, 4) = NULL,
 :044_4 DECIMAL(19, 4) = NULL,
 :044_5 DECIMAL(19, 4) = NULL,
 :044_6 DECIMAL(19, 4) = NULL,
 :044_7 DECIMAL(19, 4) = NULL,
 :044_8 DECIMAL(19, 4) = NULL,
 :044_9 DECIMAL(19, 4) = NULL,
 :045_1 DECIMAL(19, 4) = NULL,
 :045_2 DECIMAL(19, 4) = NULL,
 :045_3 DECIMAL(19, 4) = NULL,
 :045_4 DECIMAL(19, 4) = NULL,
 :045_5 DECIMAL(19, 4) = NULL,
 :045_6 DECIMAL(19, 4) = NULL,
 :045_7 DECIMAL(19, 4) = NULL,
 :045_8 DECIMAL(19, 4) = NULL,
 :045_9 DECIMAL(19, 4) = NULL,
 :046_1 DECIMAL(19, 4) = NULL,
 :046_2 DECIMAL(19, 4) = NULL,
 :046_3 DECIMAL(19, 4) = NULL,
 :046_4 DECIMAL(19, 4) = NULL,
 :046_5 DECIMAL(19, 4) = NULL,
 :046_6 DECIMAL(19, 4) = NULL,
 :046_7 DECIMAL(19, 4) = NULL,
 :046_8 DECIMAL(19, 4) = NULL,
 :046_9 DECIMAL(19, 4) = NULL,
 :047_1 DECIMAL(19, 4) = NULL,
 :047_2 DECIMAL(19, 4) = NULL,
 :047_3 DECIMAL(19, 4) = NULL,
 :047_4 DECIMAL(19, 4) = NULL,
 :047_5 DECIMAL(19, 4) = NULL,
 :047_6 DECIMAL(19, 4) = NULL,
 :047_7 DECIMAL(19, 4) = NULL,
 :047_8 DECIMAL(19, 4) = NULL,
 :047_9 DECIMAL(19, 4) = NULL,
 :048_1 DECIMAL(19, 4) = NULL,
 :048_2 DECIMAL(19, 4) = NULL,
 :048_3 DECIMAL(19, 4) = NULL,
 :048_4 DECIMAL(19, 4) = NULL,
 :048_5 DECIMAL(19, 4) = NULL,
 :048_6 DECIMAL(19, 4) = NULL,
 :048_7 DECIMAL(19, 4) = NULL,
 :048_8 DECIMAL(19, 4) = NULL,
 :048_9 DECIMAL(19, 4) = NULL,
 :049_1 DECIMAL(19, 4) = NULL,
 :049_2 DECIMAL(19, 4) = NULL,
 :049_3 DECIMAL(19, 4) = NULL,
 :049_4 DECIMAL(19, 4) = NULL,
 :049_5 DECIMAL(19, 4) = NULL,
 :049_6 DECIMAL(19, 4) = NULL,
 :049_7 DECIMAL(19, 4) = NULL,
 :049_8 DECIMAL(19, 4) = NULL,
 :049_9 DECIMAL(19, 4) = NULL
)
AS 
INSERT INTO tblSimulation (p, cfYear, cfLocation, [Delta], Design, SigmaLoc,
                                Sigma, SampleSize, Intercept)
SELECT DT1.p, DT1.cfYear, DT1.cfLocation,
       DT1.Delta, DT1.Design, DT1.SigmaLoc,
       DT1.Sigma, DT1.SampleSize, DT1.Intercept
  FROM (
        SELECT :001_1 AS p, :001_2 AS cfYear, :001_3 AS cfLocation,
               :001_4 AS Delta, :001_5 AS Design, :001_6 AS SigmaLoc,
               :001_7 AS Sigma, :001_8 AS SampleSize, :001_9 AS Intercept
          FROM OneRowTable
        UNION ALL
        SELECT :002_1, :002_2, :002_3,
               :002_4, :002_5, :002_6,
               :002_7, :002_8, :002_9
          FROM OneRowTable
        UNION ALL
        SELECT :003_1, :003_2, :003_3,
               :003_4, :003_5, :003_6,
               :003_7, :003_8, :003_9
          FROM OneRowTable
        UNION ALL
        SELECT :004_1, :004_2, :004_3,
               :004_4, :004_5, :004_6,
               :004_7, :004_8, :004_9
          FROM OneRowTable
        UNION ALL
        SELECT :005_1, :005_2, :005_3,
               :005_4, :005_5, :005_6,
               :005_7, :005_8, :005_9
          FROM OneRowTable
        UNION ALL
        SELECT :006_1, :006_2, :006_3,
               :006_4, :006_5, :006_6,
               :006_7, :006_8, :006_9
          FROM OneRowTable
        UNION ALL
        SELECT :007_1, :007_2, :007_3,
               :007_4, :007_5, :007_6,
               :007_7, :007_8, :007_9
          FROM OneRowTable
        UNION ALL
        SELECT :008_1, :008_2, :008_3,
               :008_4, :008_5, :008_6,
               :008_7, :008_8, :008_9
          FROM OneRowTable
        UNION ALL
        SELECT :009_1, :009_2, :009_3,
               :009_4, :009_5, :009_6,
               :009_7, :009_8, :009_9
          FROM OneRowTable
        UNION ALL
        SELECT :010_1, :010_2, :010_3,
               :010_4, :010_5, :010_6,
               :010_7, :010_8, :010_9
          FROM OneRowTable
        UNION ALL
        SELECT :011_1, :011_2, :011_3,
               :011_4, :011_5, :011_6,
               :011_7, :011_8, :011_9
          FROM OneRowTable
        UNION ALL
        SELECT :012_1, :012_2, :012_3,
               :012_4, :012_5, :012_6,
               :012_7, :012_8, :012_9
          FROM OneRowTable
        UNION ALL
        SELECT :013_1, :013_2, :013_3,
               :013_4, :013_5, :013_6,
               :013_7, :013_8, :013_9
          FROM OneRowTable
        UNION ALL
        SELECT :014_1, :014_2, :014_3,
               :014_4, :014_5, :014_6,
               :014_7, :014_8, :014_9
          FROM OneRowTable
        UNION ALL
        SELECT :015_1, :015_2, :015_3,
               :015_4, :015_5, :015_6,
               :015_7, :015_8, :015_9
          FROM OneRowTable
        UNION ALL
        SELECT :016_1, :016_2, :016_3,
               :016_4, :016_5, :016_6,
               :016_7, :016_8, :016_9
          FROM OneRowTable
        UNION ALL
        SELECT :017_1, :017_2, :017_3,
               :017_4, :017_5, :017_6,
               :017_7, :017_8, :017_9
          FROM OneRowTable
        UNION ALL
        SELECT :018_1, :018_2, :018_3,
               :018_4, :018_5, :018_6,
               :018_7, :018_8, :018_9
          FROM OneRowTable
        UNION ALL
        SELECT :019_1, :019_2, :019_3,
               :019_4, :019_5, :019_6,
               :019_7, :019_8, :019_9
          FROM OneRowTable
        UNION ALL
        SELECT :020_1, :020_2, :020_3,
               :020_4, :020_5, :020_6,
               :020_7, :020_8, :020_9
          FROM OneRowTable
        UNION ALL
        SELECT :021_1, :021_2, :021_3,
               :021_4, :021_5, :021_6,
               :021_7, :021_8, :021_9
          FROM OneRowTable
        UNION ALL
        SELECT :022_1, :022_2, :022_3,
               :022_4, :022_5, :022_6,
               :022_7, :022_8, :022_9
          FROM OneRowTable
        UNION ALL
        SELECT :023_1, :023_2, :023_3,
               :023_4, :023_5, :023_6,
               :023_7, :023_8, :023_9
          FROM OneRowTable
        UNION ALL
        SELECT :024_1, :024_2, :024_3,
               :024_4, :024_5, :024_6,
               :024_7, :024_8, :024_9
          FROM OneRowTable
        UNION ALL
        SELECT :025_1, :025_2, :025_3,
               :025_4, :025_5, :025_6,
               :025_7, :025_8, :025_9
          FROM OneRowTable
        UNION ALL
        SELECT :026_1, :026_2, :026_3,
               :026_4, :026_5, :026_6,
               :026_7, :026_8, :026_9
          FROM OneRowTable
        UNION ALL
        SELECT :027_1, :027_2, :027_3,
               :027_4, :027_5, :027_6,
               :027_7, :027_8, :027_9
          FROM OneRowTable
        UNION ALL
        SELECT :028_1, :028_2, :028_3,
               :028_4, :028_5, :028_6,
               :028_7, :028_8, :028_9
          FROM OneRowTable
        UNION ALL
        SELECT :029_1, :029_2, :029_3,
               :029_4, :029_5, :029_6,
               :029_7, :029_8, :029_9
          FROM OneRowTable
        UNION ALL
        SELECT :030_1, :030_2, :030_3,
               :030_4, :030_5, :030_6,
               :030_7, :030_8, :030_9
          FROM OneRowTable
        UNION ALL
        SELECT :031_1, :031_2, :031_3,
               :031_4, :031_5, :031_6,
               :031_7, :031_8, :031_9
          FROM OneRowTable
        UNION ALL
        SELECT :032_1, :032_2, :032_3,
               :032_4, :032_5, :032_6,
               :032_7, :032_8, :032_9
          FROM OneRowTable
        UNION ALL
        SELECT :033_1, :033_2, :033_3,
               :033_4, :033_5, :033_6,
               :033_7, :033_8, :033_9
          FROM OneRowTable
        UNION ALL
        SELECT :034_1, :034_2, :034_3,
               :034_4, :034_5, :034_6,
               :034_7, :034_8, :034_9
          FROM OneRowTable
        UNION ALL
        SELECT :035_1, :035_2, :035_3,
               :035_4, :035_5, :035_6,
               :035_7, :035_8, :035_9
          FROM OneRowTable
        UNION ALL
        SELECT :036_1, :036_2, :036_3,
               :036_4, :036_5, :036_6,
               :036_7, :036_8, :036_9
          FROM OneRowTable
        UNION ALL
        SELECT :037_1, :037_2, :037_3,
               :037_4, :037_5, :037_6,
               :037_7, :037_8, :037_9
          FROM OneRowTable
        UNION ALL
        SELECT :038_1, :038_2, :038_3,
               :038_4, :038_5, :038_6,
               :038_7, :038_8, :038_9
          FROM OneRowTable
        UNION ALL
        SELECT :039_1, :039_2, :039_3,
               :039_4, :039_5, :039_6,
               :039_7, :039_8, :039_9
          FROM OneRowTable
        UNION ALL
        SELECT :040_1, :040_2, :040_3,
               :040_4, :040_5, :040_6,
               :040_7, :040_8, :040_9
          FROM OneRowTable
        UNION ALL
        SELECT :041_1, :041_2, :041_3,
               :041_4, :041_5, :041_6,
               :041_7, :041_8, :041_9
          FROM OneRowTable
        UNION ALL
        SELECT :042_1, :042_2, :042_3,
               :042_4, :042_5, :042_6,
               :042_7, :042_8, :042_9
          FROM OneRowTable
        UNION ALL
        SELECT :043_1, :043_2, :043_3,
               :043_4, :043_5, :043_6,
               :043_7, :043_8, :043_9
          FROM OneRowTable
        UNION ALL
        SELECT :044_1, :044_2, :044_3,
               :044_4, :044_5, :044_6,
               :044_7, :044_8, :044_9
          FROM OneRowTable
        UNION ALL
        SELECT :045_1, :045_2, :045_3,
               :045_4, :045_5, :045_6,
               :045_7, :045_8, :045_9
          FROM OneRowTable
        UNION ALL
        SELECT :046_1, :046_2, :046_3,
               :046_4, :046_5, :046_6,
               :046_7, :046_8, :046_9
          FROM OneRowTable
        UNION ALL
        SELECT :047_1, :047_2, :047_3,
               :047_4, :047_5, :047_6,
               :047_7, :047_8, :047_9
          FROM OneRowTable
        UNION ALL
        SELECT :048_1, :048_2, :048_3,
               :048_4, :048_5, :048_6,
               :048_7, :048_8, :048_9
          FROM OneRowTable
        UNION ALL
        SELECT :049_1, :049_2, :049_3,
               :049_4, :049_5, :049_6,
               :049_7, :049_8, :049_9
          FROM OneRowTable
       ) AS DT1
       WHERE NOT (
                  DT1.p IS NULL 
                  AND DT1.cfYear IS NULL 
                  AND DT1.cfLocation IS NULL 
                  AND DT1.Delta IS NULL 
                  AND DT1.Design IS NULL 
                  AND DT1.SigmaLoc IS NULL 
                  AND DT1.Sigma IS NULL 
                  AND DT1.SampleSize IS NULL 
                  AND DT1.Intercept IS NULL
                 )
;

Usage:

EXECUTE Add100Simulations 
           1, 0, 0, 0, 0, 0, 0, 0, 0,
           2, 0, 0, 0, 0, 0, 0, 0, 0,
           3, 0, 0, 0, 0, 0, 0, 0, 0,
           4, 0, 0, 0, 0, 0, 0, 0, 0,
           5, 0, 0, 0, 0, 0, 0, 0, 0,
           6, 0, 0, 0, 0, 0, 0, 0, 0,
           7, 0, 0, 0, 0, 0, 0, 0, 0,
           8, 0, 0, 0, 0, 0, 0, 0, 0,
           9, 0, 0, 0, 0, 0, 0, 0, 0,
           10, 0, 0, 0, 0, 0, 0, 0, 0,
           11, 0, 0, 0, 0, 0, 0, 0, 0,
           12, 0, 0, 0, 0, 0, 0, 0, 0,
           13, 0, 0, 0, 0, 0, 0, 0, 0,
           14, 0, 0, 0, 0, 0, 0, 0, 0,
           15, 0, 0, 0, 0, 0, 0, 0, 0,
           16, 0, 0, 0, 0, 0, 0, 0, 0,
           17, 0, 0, 0, 0, 0, 0, 0, 0,
           18, 0, 0, 0, 0, 0, 0, 0, 0,
           19, 0, 0, 0, 0, 0, 0, 0, 0,
           20, 0, 0, 0, 0, 0, 0, 0, 0,
           21, 0, 0, 0, 0, 0, 0, 0, 0,
           22, 0, 0, 0, 0, 0, 0, 0, 0,
           23, 0, 0, 0, 0, 0, 0, 0, 0,
           24, 0, 0, 0, 0, 0, 0, 0, 0,
           25, 0, 0, 0, 0, 0, 0, 0, 0,
           26, 0, 0, 0, 0, 0, 0, 0, 0,
           27, 0, 0, 0, 0, 0, 0, 0, 0,
           28, 0, 0, 0, 0, 0, 0, 0, 0,
           29, 0, 0, 0, 0, 0, 0, 0, 0,
           30, 0, 0, 0, 0, 0, 0, 0, 0,
           31, 0, 0, 0, 0, 0, 0, 0, 0,
           32, 0, 0, 0, 0, 0, 0, 0, 0,
           33, 0, 0, 0, 0, 0, 0, 0, 0,
           34, 0, 0, 0, 0, 0, 0, 0, 0,
           35, 0, 0, 0, 0, 0, 0, 0, 0,
           36, 0, 0, 0, 0, 0, 0, 0, 0,
           37, 0, 0, 0, 0, 0

Note the above is ANSI-92 Query Mode syntax (see http://office.microsoft.co

onedaywhen  2009-08-02 06:35:57
Learn something new every day. I've removed my comment to say it's impossible: what's the performance like (compared to multiple inserts in a single transaction)?Pity Access forces such a hack to do it at all...
mavnn  2009-08-03 09:18:50
A: 

I found an elegant solution within R, (the software I'm working with). The RODBC package has a function sqlSave which allow to append and entire data.frame at once to a table. This works almost twice as fast as individual inserts within a transaction.

library(RODBC)
MDB <- odbcConnectAccess("database.mdb")
sqlSave(channel = MDB, dat = sims, tablename = "tblSimulation", append = TRUE, rownames = FALSE)
odbcClose(MDB)
Thierry  2009-08-07 07:58:01
A: 

Your query should look like this

insert into aaa (col1, col2)
select * from (select 'yourdatarow1col1' as col1 , 'yourdatarow1col2' as col2 from ddd
union all
select 'yourdatarow2col1' as col1, 'yourdatarow1col2' as col2 from ddd) as tmp

aaa: Is your target table in access

ddd: create a table in access db with one colum and must have 1 row, doesn't not mater what data.

aliases: All aliases should have same name and order has target table

Hope works for you, my process drop from 15 minutes to 1.30 minutes

Bye Gus

Gus  2010-04-19 16:12:04
Aliases don't matter in the successive SELECT statements in a UNION. Only the aliases of the first SELECT statement matter, and then only for a SELECT statement based on the UNION.
David-W-Fenton  2010-04-19 18:10:40

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