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How do I execute a stored procedure once for each row returned by query?
...r INSERT and DELETEs. If you need to do multiple updates with IFs you can convert those to multiple UPDATE FROM with the #temp table and use CASE statements or WHERE conditions.
When working in a database try to lose the mindset of looping, it is a real performance drain, will cause locking/blocki...
LINQ to Entities does not recognize the method 'System.String ToString()' method, and this method ca
...this.
For this case, what you are looking for here is SqlFunctions.StringConvert:
from p in context.pages
where p.Serial == SqlFunctions.StringConvert((double)item.Key.Id)
select p;
Good when the solution with temporary variables is not desirable for whatever reasons.
Similar to SqlFunctions ...
How do I kill all the processes in Mysql “show processlist”?
...
that is a good idea. Lemme try converting that to a shell script on a cron...!
– M. Faraz
Sep 13 '13 at 7:07
5
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Is floating point math broken?
...urrency unit is - this often helps with e.g. reducing round-off error when converting "$29.99 a month" to a daily rate - but it should still be fixed-point arithmetic.)
– zwol
May 12 '14 at 22:23
...
Cannot drop database because it is currently in use
...E'
DECLARE @SQL varchar(max)
SELECT @SQL = COALESCE(@SQL,'') + 'Kill ' + Convert(varchar, SPId) + ';'
FROM MASTER..SysProcesses
WHERE DBId = DB_ID(@DatabaseName) AND SPId <> @@SPId
--SELECT @SQL
EXEC(@SQL)
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...
Return anonymous type results?
...t supported by some LINQ providers, couldn't you select an anonymous type, convert it to IEnumerable, then select a tuple from that?
– TehPers
Nov 27 '17 at 19:07
...
efficient way to implement paging
...
LinqToSql will automatically convert a .Skip(N1).Take(N2) into the TSQL syntax for you. In fact, every "query" you do in Linq, is actually just creating a SQL query for you in the background. To test this, just run SQL Profiler while your application i...
Search for one value in any column of any table inside a database
... SELECT @TableKeys = @TableKeys + '''' + QUOTENAME([name]) + ': '' + CONVERT(nvarchar(250),' + [name] + ') + ''' + ',' + ''' + '
FROM syscolumns
WHERE [id] IN (
SELECT [id]
FROM sysobjects
WHERE [name] = @TableShortName)
AND...
T-SQL get SELECTed value of stored procedure
... for INTs, because RETURN can only return a single int value and nulls are converted to a zero.
OUTPUT PARAMETER
you can use an output parameter:
CREATE PROCEDURE GetMyInt
( @Param int
,@OutValue int OUTPUT)
AS
SELECT @OutValue=MyIntField FROM MyTable WHERE MyPrimaryKeyField = @Param
RETURN ...
Capitalize first letter. MySQL
...s - if not, and you cant set up a temporary DB on your personal machine to convert your tables, then ask your shared hosting provider if they will set this function for you.
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