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I have my business-logic in ~3000 lines of T-SQL stored procedures, and most of them has next approach:
SELECT A.A, B.B, C.C FROM aaa AS A, bbb AS B, ccc AS C -- here is what I called multi-table WHERE A.B = B.ID AND B.C = C.ID AND C.ID = @param
Will ...
Started by abatishchev on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
They should produce exactly the same internal....
And yes, LEFT OUTER JOINs (which, btw are also ANSI JOIN syntax) are what you want.
The two queries are equal JOIN syntax.
They should be equal.
Execute both and check their query plans.
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After I've filled with data the query object , should there be an object that executes the query (filled query object as method parameter) or should the object execute the query by itself ?
Answer Snippets (Read the full thread at stackoverflow):
In LINQ....
Think of how it's done in LINQ-to-SQL for example.
If not you're violating SRP as the query is encapsulating both the specification of the query and the execution of the query.
Something else should execute the query.
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What are the maximum allowed number of columns in a query in access 2003?
Started by Brettski on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
You can check by going to Help > Specifications > Query within Access
Number of tables in a query: 32
Number....
255 I believe.
A query against access that's pulling in hundreds or thousands of columns isn't the right approach.
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Ask your Facebook Friends
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Hi
What is faster query select...where Fname = 'mark' or select...where Fname like 'mark'
thank's
Started by Gold on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
This SQL Server Performance thread lists.
I believe the equality query, in general, is much faster.
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What does TOP 1 mean in an sql query?
SELECT TOP 1 RequestId FROM PublisherRequests
Started by mohammad reza on
, 10 posts
by 10 people.
Answer Snippets (Read the full thread at stackoverflow):
Your query in specific will return/library/ms189463.aspx
The query....
The first row.
It means only return the top 1 row, i.e.
You really dont know what mean TOP 1? Have you ever wrote a SQL query?
You should learn the basic .
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Selecting the union:
select * from table1 union select * from table1_backup
What is the query to select the intersection?
Started by Peter Turner on
, 9 posts
by 9 people.
Answer Snippets (Read the full thread at stackoverflow):
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I tried what seemed like the most intuitive approach
$query = "SELECT * FROM members WHERE username = '$_CLEAN[username]' AND password = '$_CLEAN[password]'"; $result = mysql_query($query); if ($result) { ...
but that didn't work because mysql_query returns...
Started by Ryan on
, 7 posts
by 7 people.
Answer Snippets (Read the full thread at stackoverflow):
But what you need to understand = '$_CLEAN[username]' AND password = '....
What about this way:
$query = "SELECT * FROM members WHERE username_query() returns a resource on success, or FALSE on error.
Point it'll continue on.
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What is the term "deferred query evaluation" in the context of LINQ referes to? (please give example).
Answer Snippets (Read the full thread at stackoverflow):
Normal google search
Deferred Query Evaluation and Extension Methods Resolution
Deferred Query Evaluation
linq-deferred-query-evaluation
Any many more
linq deferred query evaluation
With respect to LINQ, the query that....
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I have the following select query
SELECT t1.* FROM t1, t2 WHERE t1.field1=t2.field1 And t1.field2=t2.field2 And t1.field3=t2.field3 ;
I want to convert this into a delete query. how should i write it?
Started by tksy on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
What about this query:
DELETE FROM t1 WHERE t1.field1 IN ( SELECT t1.field1 FROM t1, t2 WHERE) AND (t1.field1 = t2.field1);
And it worked, you have to set the Unique Records to Yes
What about.
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Some of the queries I have written inside MS-Access are getting deleted automatically. And while I run the queries through code, I get this error
'Query should have one destination field'
What can be the possible reason
Explanation: I created a query ...
Started by Varun Mahajan on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Does the query stick around when you don't run code is overwriting the ....
When you open the query in design view, you will most likely notice it doesn't.
Check if your query actually has any fields in the query design grid.
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