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SQL/mysql - Select distinct/UNIQUE but return all columns?
I am trying to accomplish the following sql statement but I want it to return all columns is this possible? Something like:
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What makes a SQL statement sargable?
...t on the subject matter. So the question is, what does or doesn't make an SQL query sargable? Any documentation would be greatly appreciated.
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SQL: deleting tables with prefix
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You cannot do it with just a single MySQL command, however you can use MySQL to construct the statement for you:
In the MySQL shell or through PHPMyAdmin, use the following query
SELECT CONCAT( 'DROP TABLE ', GROUP_CONCAT(table_name) , ';' )
AS statement F...
LINQ to SQL: Multiple joins ON multiple Columns. Is this possible?
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Joining on multiple columns in Linq to SQL is a little different.
var query =
from t1 in myTABLE1List // List<TABLE_1>
join t2 in myTABLE1List
on new { t1.ColumnA, t1.ColumnB } equals new { t2.ColumnA, t2.ColumnB }
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You have to take a...
Is there a performance difference between CTE , Sub-Query, Temporary Table or Table Variable?
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SQL is a declarative language, not a procedural language. That is, you construct a SQL statement to describe the results that you want. You are not telling the SQL engine how to do the work.
As a general rule, it is a good...
SQL - find records from one table which don't exist in another
I've got the following two SQL tables (in MySQL):
8 Answers
8
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How to create a new database using SQLAlchemy?
Using SQLAlchemy, an Engine object is created like this:
4 Answers
4
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How to force a SQL Server 2008 database to go Offline
...not hang and not kill existing connections. See http://www.blackwasp.co.uk/SQLOffline.aspx for details
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Display names of all constraints for a table in Oracle SQL
...ch of the constraint for the multiple tables that I have created in Oracle SQL.
6 Answers
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EF5: Cannot attach the file ‘{0}' as database '{1}'
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If you delete the DB file, it still stays registered with SqlLocalDB. Sometimes it fixes it to delete the DB. You can do this from the command line.
Open the "Developer Command Propmpt for VisualStudio" under your start/programs menu.
Run the following commands:
sqllocaldb.exe st...