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Convert column to int

Hello,

Is there a way i can convert column1 to int
SELECT 
		
				CASE 
						WHEN CAST(GETDATE() AS DATE) = DATEADD(yy, DATEDIFF(yy, 0, GETDATE()), 0) THEN 1 
				ELSE 
				
						MAX ([' +  @ColumnName1 + ']'  + '  ) END Output'  
				
				+ ' FROM  [dbo].[' + @tableName + ']'  

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to get query like :

select  max (cast(ref as int)) as ref from table1 order by ref

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Cheers
0
RIAS
Asked:
RIAS
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2 Solutions
 
Vitor MontalvãoMSSQL Senior EngineerCommented:
I'm not sure if I understood but if you want to add the CAST function the just add the keyword:
SELECT  CASE 
                       WHEN CAST(GETDATE() AS DATE) = DATEADD(yy, DATEDIFF(yy, 0, GETDATE()), 0) THEN 1 
			ELSE MAX (CAST[' +  @ColumnName1 + '] AS INT) END Output FROM  [dbo].[' + @tableName + ']'  

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Btw, I'm assuming this is a dynamic SQL otherwise you can't do this.
0
 
RIASAuthor Commented:
Hello Vitor,

This a stored procedure ,your query generated syntax error .

The stored procedure is as bellow

	  DECLARE @SQL VARCHAR(1000) = null


SET @SQL = '
	
		SELECT 
		
				CASE 
						WHEN CAST(GETDATE() AS DATE) = DATEADD(yy, DATEDIFF(yy, 0, GETDATE()), 0) THEN 1 
				ELSE 
				
						MAX ( [' +  @ColumnName1 + ']'  + '  ) END Output'  
				
				+ ' FROM  [dbo].[' + @tableName + ']'  

			  
EXECUTE(@SQL)
		

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0
 
RIASAuthor Commented:
The problem with the original Sp query is that it does not give correct max (ref)  ,need to vconvert it to integer.

Cheers
0
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Vitor MontalvãoMSSQL Senior EngineerCommented:
This a stored procedure ,your query generated syntax error .
Can you post the error?
0
 
RIASAuthor Commented:
	  DECLARE @SQL VARCHAR(1000) = null


SET @SQL = '
	
		SELECT 
		
				CASE 
						WHEN CAST(GETDATE() AS DATE) = DATEADD(yy, DATEDIFF(yy, 0, GETDATE()), 0) THEN 1 
				ELSE 
				
						MAX (CAST[' +  @ColumnName1 + '] AS INT)'  + '  ) END Output'  
				
				+ ' FROM  [dbo].[' + @tableName + ']'  

			  
EXECUTE(@SQL)
		

Open in new window

0
 
RIASAuthor Commented:
Error :

Msg 102, Level 15, State 1, Line 9
Incorrect syntax near 'Ref'.
Msg 102, Level 15, State 1, Line 9
Incorrect syntax near 'Output'.
0
 
Pawan KumarDatabase ExpertCommented:
Try

DECLARE @SQL VARCHAR(MAX) = ''
SET @SQL = '
	
		SELECT 
		
				CASE 
						WHEN CAST(GETDATE() AS DATE) = DATEADD(yy, DATEDIFF(yy, 0, GETDATE()), 0) THEN 1 
				ELSE 
				
						MAX (CAST[' + @ColumnName1 + '] AS INT)'  + '  ) END Output'  
				
				+ ' FROM  [dbo].[' + @tableName + ']'  


EXECUTE(@SQL)

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1
 
Vitor MontalvãoMSSQL Senior EngineerCommented:
Looks like you had an extra parentheses closing:
SET @SQL = 'SELECT CASE 
		WHEN CAST(GETDATE() AS DATE) = DATEADD(yy, DATEDIFF(yy, 0, GETDATE()), 0) THEN 1 
		ELSE MAX (CAST[' +  @ColumnName1 + '] AS INT)
		END Output
FROM  [dbo].[' + @tableName + ']'  

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0
 
Vitor MontalvãoMSSQL Senior EngineerCommented:
Sorry, no extra closing but need one to be opened after CAST:
SET @SQL = 'SELECT CASE 
		WHEN CAST(GETDATE() AS DATE) = DATEADD(yy, DATEDIFF(yy, 0, GETDATE()), 0) THEN 1 
		ELSE MAX (CAST( [' +  @ColumnName1 + '] AS INT))
		END Output
FROM  [dbo].[' + @tableName + ']'  

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1
 
RIASAuthor Commented:
Cheers Vitor, thanks Pawan as well!
0
 
Vitor MontalvãoMSSQL Senior EngineerCommented:
RIAS, why are you giving points to a solution that doesn't work?
The intention is for future people with similar issue to come here and check immediately the comments that really helped you, so working solutions.
EE's policy doesn't reward efforts (unfortunally).
1
 
RIASAuthor Commented:
The solution was partially correct, but if it for fully working then will do so in future.

Cheers
0

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