I have a foreign key constraint in my table, I want to add ON DELETE CASCADE to it.
I have tried this:
alter table child_table_name
modify constraint fk_name
foreign key (child_column_name)
references parent_table_name (parent_column_name) on delete cascade;
Doesn't work.
EDIT:
Foreign key already exists, there are data in fo...
I have a SSIS package (exports some database tables --> CSV file)
After creation of this package, I can run the package
from Visual Studio or just by clicking it.
But it fails if i add to execute this package as a SQL Agent Job scheduled at some arbitrary time of a day.
Pointers needed if i have to configure anything related to Permi...
Hi,
I have a query which part of a SP which is executed fairly regularly, and the query took a while to execute, so I decided to have a look at it. I did an autotrace on the query, and this was the execution plan returned [ pasted in pastebin due to excessive size ]
I added indexes on the tables which was undergoing full table access,...
I just need to make a SQL table of time zones - at this point, my only need is to populate a drop-down list on an online form. I'm envisioning something simple with columns for ISO code, name, UTC offset, and perhaps a list of representative cities. I thought I would be able to easily find something online to copy-and-paste, but haven't ...
I came across an article saying that using my sqlConnection like this :
using (SqlConnection sqlConnection = new SqlConnection(Config.getConnectionString()))
{
using (SqlDataAdapter dataAdapter = new SqlDataAdapter(query, sqlConnection))
{
dataAdapter.Fill(dataSet);
...
Hi,
I need to move the transaction log for a database I have just created using aspnet_regsql.
Is it possible to move the transaction log using sqlcmd or any other command line tool?
kind regards,
...
How can I check for a substring in a string in Oracle without using LIKE? Let's say I want to select all users from a table that have the letter "z" in their last name:
SELECT * FROM users WHERE last_name LIKE "%z%";
That would work, but I don't want to use LIKE. Is there some other function I could use?
...
I have need of some logic in a stored procedure. All the stored procedure does it perform a couple of logic rules and then returns a true or false depending on the result.
The pseudo SQL code:
CREATE TABLE #PV ([Date] DATETIME, Dis FLOAT, Del Float, Sold Float)
INSERT #PV exec GetPVSummaryReport @ID, @PID, @From, @To
SELECT AVG(Dis) / ...
I've never worked with Database Functions, but my current project requires it. I need to put a common sql query into a function so we don't have to type it out in our code hundreds of times. I've got the function created, but I don't know how to use it.
Here's the function code:
USE [DB_NAME]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENT...
How do I store numbers in an Access column and then associate some meaningful string to each value?
Because I don't want to be seeing raw numbers when I can define the meaning of each value once at for all, and have those meanings displayed in the Datasheet View, like:
ID Name Type
1 Jack 1 (Friend)
2 Jill 1 (Frien...
Hi there. I have 3 tables,
tblBook(BookID, ISBN, Title, Summary)
tblAuthor(AuthorID, FullName)
tblBookAuthor(BookAuthorID, BookID, AuthorID)
tblBookAuthor allows for a single book to have multiple authors and an author may have written any number of books.
I am using full text search to search for ranking base on a word:
SET @Word ...
I am trying to find a function in MSAccess that can be used to return the size of data (in bytes). e.g something like
SELECT x.id, sizeof(x.custom_data) AS size
Specifically for OLE data types but anything more general would be cool.
...
I would like to know if I can get the average of a sum in one single SQL SERVER request,
Have tried to do it with the following request but it doesn't work:
SELECT t.client,
AVG(SUM(t.asset)) AS Expr1
FROM TABLE t
GROUP BY t.client
...
How do you get access to the Resource Provider for the current context?
I have a web page that allows a client to edit their Globalization values which are stored in SQL.
However pages still utilize the cached values until the app domain is freed.
How can I force clear/reset the provider and or get access to it to clear its cache.
Th...
Is there a difference in the order of v1 and v2 in a BETWEEN query on SQL Server?
SELECT *
FROM table
WHERE col BETWEEN v1 AND v2
currently I don’t get any results if v1 is bigger than v2. Is this only syntactic sugar for
col >= v1 AND col <= v2
or does it really take all values between the two? on my current observations I gues...
I have this code working:
public IEnumerable<string> GetEmpNames()
{
var cmd = SqlCommand("select [EmpName] from [dbo].[Emp]");
using (var rdr = cmd.ExecuteReader())
while (rdr.Read())
yield return (string) rdr["EmpName"];
}
However, I'm wondering if there's a better (LINQish) way, not having to resort to y...
I have 2 fields I'm working with that are stored as smallint military structured times. Edit I'm running on IBM Informix Dynamic Server Version 10.00.FC9
beg_tm and end_tm
Sample values
beg_tm 545
end_tm 815
beg_tm 1245
end_tm 1330
Sample output
beg_tm 5:45 am
end_tm 8:15 am
beg_tm 12:45 pm
end_tm 1:30 pm
I had...
i have 5 names in a table and i need to put these in an arraylist....
any suggestions???
int rowsinmachgrp = getnumofrows();//gets no of rows in table
SqlConnection dataConnection = new SqlConnection();
dataConnection.ConnectionString = ConfigurationManager.ConnectionStrings["SumooHAgentDBConnectio...
I have a birthdate, year, month, day columns where columns "year,month,day" are foreign key to other tables
What I want to do is for each birthdate get id(year(birthdate)) to be the value of year column and the same thing for month and day columns.
How can I do this in MySQL?
Thanks in advance
...
We have a common database schema that we use for some tables in our system. Them main reason is that we are running a multi-tenant database so not all of our users require the same fields. However, I do not know what the 'proper' name for this type of schema is.
Here's an example of what one of our tables might look like:
ClientID |...