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Delete statement


Delete statement

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khushbu
khushbu
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Can someone help me in writing this query. Doing some silly mistake but not able to recognize.
for testing purpose commented actual delete clause

if DB_name () = N'MyDB'
begin

IF( EXISTS( SELECT 1 FROM sch1.table1 WHERE guid= N'05172A47' and IntId=12 ))

print 'im deleting 1';

--DELETE FROM sch1.table1 where Guid = N'05172A47' and IntId=12


print 'im deleting 2';

IF( EXISTS( SELECT 1 FROM sch1.table1 WHERE Guid = N'3DFB856F' and IntId=13 ))

--DELETE FROM sch1.table1 where Guid = N'3DFB856F' and IntId=13

end
ELSE PRINT 'Nothing deleted'

end


Eirikur Eiriksson
Eirikur Eiriksson
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khushbu - Friday, April 21, 2017 3:22 AM
Can someone help me in writing this query. Doing some silly mistake but not able to recognize.
for testing purpose commented actual delete clause

if DB_name () = N'MyDB'
begin

IF( EXISTS( SELECT 1 FROM sch1.table1 WHERE guid= N'05172A47' and IntId=12 ))

print 'im deleting 1';

--DELETE FROM sch1.table1 where Guid = N'05172A47' and IntId=12


print 'im deleting 2';

IF( EXISTS( SELECT 1 FROM sch1.table1 WHERE Guid = N'3DFB856F' and IntId=13 ))

--DELETE FROM sch1.table1 where Guid = N'3DFB856F' and IntId=13

end
ELSE PRINT 'Nothing deleted'

end


Something like this?
Cool
IF DB_name () = N'MyDB'
BEGIN
IF( EXISTS( SELECT 1 FROM sch1.table1 WHERE guid= N'05172A47' and IntId=12 ))
BEGIN
print 'im deleting 1';
--DELETE FROM sch1.table1 where Guid = N'05172A47' and IntId=12
END

IF( EXISTS( SELECT 1 FROM sch1.table1 WHERE Guid = N'3DFB856F' and IntId=13 ))
BEGIN
print 'im deleting 2';
--DELETE FROM sch1.table1 where Guid = N'3DFB856F' and IntId=13
END
END
ELSE
BEGIN
PRINT 'Nothing deleted'
END

Phil Parkin
Phil Parkin
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A more efficient way of coding this is to perform the deletion and then check @@ROWCOUNT afterwards, thus hitting the table once per deletion rather than twice.


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TheSQLGuru
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khushbu - Friday, April 21, 2017 3:22 AM
Can someone help me in writing this query. Doing some silly mistake but not able to recognize.
for testing purpose commented actual delete clause

if DB_name () = N'MyDB'
begin

IF( EXISTS( SELECT 1 FROM sch1.table1 WHERE guid= N'05172A47' and IntId=12 ))

print 'im deleting 1';

--DELETE FROM sch1.table1 where Guid = N'05172A47' and IntId=12


print 'im deleting 2';

IF( EXISTS( SELECT 1 FROM sch1.table1 WHERE Guid = N'3DFB856F' and IntId=13 ))

--DELETE FROM sch1.table1 where Guid = N'3DFB856F' and IntId=13

end
ELSE PRINT 'Nothing deleted'

end


Not sure if your GUID column is actually a uniqueidentifier or not, but if so I don't think either of your strings are valid. Also, I don't see where you stated what the actual problem/error is.


Best,
Kevin G. Boles
SQL Server Consultant
SQL MVP 2007-2012
TheSQLGuru on googles mail service
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