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tsql how to update column in all records of a table ..
Posted on 2012-12-26
/****** Script for SelectTopNRows command from SSMS ******/
SELECT top 2 p.ProgramID,a.ProgramIDM
FROM [radiomix].[dbo].[chat] a
inner JOIN [radiomix].[dbo].[MixFmProgram] p ON (a.DAY = p.ProgramWeekDay)
WHERE
CONVERT(varchar,[datetimein], 114) >= convert(varchar, CONVERT(datetime,p.ProgramStart), 114)
and CONVERT(varchar,[datetimein], 114) < convert(varchar, CONVERT(datetime,p.ProgramEnd), 114 )
order by a.id desc
this is the querry
i want to update all p,ProgramIDM to the a.ProgramID
iin this example i have selected only 2 record order by a.id desc
i want to update the value of programidm in table chat by the correct one ??
what should be the query ??
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Something like this perhaps:
UPDATE a
SET ProgramIDM = p.ProgramID
FROM [radiomix].[dbo].[chat] a
INNER JOIN [radiomix].[dbo].[MixFmProgram] p ON (a.DAY = p.ProgramWeekDay)
WHERE CONVERT(varchar, [datetimein], 114) >= CONVERT(varchar, CONVERT(datetime, p.ProgramStart), 114)
AND CONVERT(varchar, [datetimein], 114) < CONVERT(varchar, CONVERT(datetime, p.ProgramEnd), 114)
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