I'm working on a Glass Types database in MS Access.
One Table in the DB lists Basic information about the glass: A unique ID (the "glass number"), description, cost per sq. ft., etc.
Table 1 "GlassInfo":
GlassNo Description CostSqFt TemperCost LamiCost
0001 "Heavy Glass" 1.38 0.18 0.65
0002 "0001 Tempered" 1.50...
As I'm looking to optimize some of my mysql queries and improve performance, I'm realizing that I'm just not sure what sort of response times I should be aiming for.
Obviously lower is better, but what do you normally target as a 'slow' query for a consumer site?
My queries are currently running between 0.00 to 0.70 seconds.
I assume...
I know that PreparedStatements avoid/prevent SQL Injection. How does it do that? Will the final form query that is constructed using PreparedStatements will be a string or otherwise?
...
I have a situation where a simple query against a table is returning incorrect values in Flex, but not in other GUI front-ends to SQLite.
select title from ttl where ttl.ttl = 140 // ttl is also the column name of the PK column
is returning the title that belongs to the row whose PK = 1400.
ttl.ttl is defined as int datatype.
Again...
What query should I execute in MySQL database to get a result containing partial sums of source table?
For example when I have table:
Id|Val
1 | 1
2 | 2
3 | 3
4 | 4
I'd like to get result like this:
Id|Val
1 | 1
2 | 3 # 1+2
3 | 6 # 1+2+3
4 | 10 # 1+2+3+4
Right now I get this result with a stored procedure containing a cursor and ...
Hello,
I have a hardcoded list of values like: 1,5,7,8 and so on.
And I must filter out rows from table that have ID in list above, so I do something like this:
Select
*
from myTable m
left join othertable t
on t.REF_ID = m.ID
where m.ID not in (1,5,7,8...)
But when I have more values (like 1000) and more rows (100) in other...
Please help me figure a single query that will transform the data below...
|id |status_a |status_b |
|+++++++++++++++++++++++|
| 1|active |inactive |
...into this one.
|status_group |count|
|++++++++++++++++++++++++|
|status_a.active | 1|
|status_b.inactive | 1|
edit: If a single pass query is possible then that wil...
Hi
I have no idea why I am having problems with something so simple but this condition statement is just not working.
@battalion = Battalion.find(params[:id])
@soldier = @battalion.soldiers(:conditions => ["seniorleader = ?", "No"])
This shows the array of Soldiers but doesn't reflect the condition I have set.
I am sure I am doing...
Yep, I'm a SQL jockey (sorta) coming into the CouchDb Map/Reduce world. I thought I had figured out how the equivalent of the COUNT(*) SQL aggregator function for CouchDB datasets with the following:
Map:
function(doc) {
emit(doc.name, doc);
}
Reduce:
function(keys, values, rereduce){
return values.length;
}
Which I thought w...
I've got a database of historical records from WW2 and currently each recorded event's date is stored in one integer field as YYMMDDHHMM. This makes simple tasks like ORDER BY, or searching for all events within a certain time period extremely easy. However, if somebody wants all events that occurred on December 1st in any year of the wa...
So I'm working on a CMS that will allow users to "traverse" through database tables. I'm having some trouble implementing it though, and am wondering if anyone has any suggestions.
Table: house
name (varchar), town (relationship, using the rel table)
Table: town
name(varchar), state (relationship, using the rel table)
Table: state
na...
Hello,
i know how to delete my tables in MySQL,
DROP TABLE
but now i need to know how to delete my tables who all have the prefix
myprefix_
How to?
--I NEED TO DO THIS IN PHPMYADMIN, IN A BROWSER. NO TERMINAL STUFF PLEASE. BATCH STUFF IS ALWAYS APRECIATED.--
...
I have a set of tables, with a .hbm.xml for each.
I tried to put in a named query but it would not compile. I moved the code to a CreateQuery and get.
DB_Portfolio is not mapped [select
sum(p.Shares * s.Price) from
DB_Portfolio p, DB_Securities s
where p.AccountNumber =
:accountNumber and p.CUSIP = s.Cusip]
The CreateQ...
I have two tables customers, pay and want to implement a gridview in silverlight with the outcome of the relationship of these two tables, the query is as follows
SELECT Pa.Tipo_Pagare, Pa.Pagare, Pa.Rut, Cli.Nombre
FROM Cred_Crexsa.dbo.Pagare AS Pa INNER JOIN
Cred_Crexsa.dbo.Clientes AS Cli ON Pa.Rut = Cli...
(SOLVED, SEE END)
I need hints on the PHP or MySQL code structure for the following:
Let's say you have X unique boxes, and Y types of fruit. Each box can contain one of each type of fruit. Some boxes might have only 2 types, some might have every type. All boxes have at least one type.
For the query, the user has a list of checkboxe...
I want to select data between 1 week ago data until today data:
SELECT username,
email,
date
FROM users
WHERE date(date) BETWEEN (CURDATE() AND (CURDATE() - 7))
ORDER BY userid DESC
LIMIT 10
Hope you guys can help me. It does not work!!!
This question has been answered by lexu
(can somebody close this question?)
...
Hi
How do I run a query that contains ( ' ) ?
For example:
select * from A where B like 'aa'bb'
Working on Oracle 10g
Thanks in advance
...
I have the following SQL table,
Id WindSpeed DateTime
--------------------------------------
1 1.1 2009-09-14 16:11:38.383
1 1.9 2009-09-15 16:11:38.383
1 2.0 2009-09-16 16:11:38.383
1 1.8 2009-09-17 16:11:38.383
1 1.7 2009-09-19 16:11:38.382
...
Hi. I am a newbie programmer. I have a page looks like below. I have a car database and i have to make a search from database with this page. There are many criterias that Users can enter and select values. But User doesn't have to fill or select all criterias. For example User can search a car that only depends on "Mark" or can search t...
Hi to you all (and thanks for this great website since there doesn't seem to exist a forum on beginner-SPARQL-questions),
i hope someone can help me on this probably totally easy-to-solve problem:
I want to run a SPARQL query against the following RDF (noted in N3, the RDF/XMl sits here). This is the desription of a journal article and...