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defualt values

Posted on 2011-09-07
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Last Modified: 2012-05-12
I need to create a stored procedure in the following format:
INSERT INTO dbo.Table(
       Row1,
      Row2,
      Row3,
etc


Select Row1,
      Row2,
      Row3,
etc

FROM SomeTable

--- But ---

Row1 for example in the select might be null --- how would i for example insert a 0 in that case in the insert. (row one is a numeric field).
0
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Question by:vbnetcoder
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12 Comments
 
LVL 29

Expert Comment

by:sammySeltzer
ID: 36495987
insert into INSERT INTO dbo.Table(
       Row1,
      Row2,
      Row3,
...
...
)

Select CASE WHEN Row1 is null then 0 else end as Row1,
      Row2,
      Row3,

...
...
From sometable
0
 
LVL 5

Expert Comment

by:eridanix
ID: 36496004
INSERT INTO dbo.Table(
       Row1,
      Row2,
      Row3,
etc.


SELECT CASE WHEN Row1 is null THEN 0 ELSE Row1 END AS Row1,
      Row2,
      Row3,
etc.

FROM SomeTable
0
 
LVL 29

Accepted Solution

by:
sammySeltzer earned 1000 total points
ID: 36496036
insert into INSERT INTO dbo.Table(
       Row1,
      Row2,
      Row3,
...
...
)

Select CASE WHEN Row1 is null then 0 else Row1 end as Row1,
      Row2,
      Row3,

...
...
From sometable

Open in new window


just a slight modification.

You can perform same case statement on all of them.

You can also use COALESCE

Select COALESCE (Row1, NULL, 0) FROM SOMETABLE, ETC


0
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LVL 28

Expert Comment

by:Ryan McCauley
ID: 36496351
Can you just use ISNULL?

ISNULL(Row1, 0) as Row1

Open in new window


It will return Row1 unless it's null, then it will return 0
0
 

Author Comment

by:vbnetcoder
ID: 36496369
Select COALESCE (Row1, NULL, 0) FROM SOMETABLE, ETC worked for me.

Is it better or worse then using select case?

0
 

Author Comment

by:vbnetcoder
ID: 36496410
I am doing this to a date

COALESCE (CONVERT(VARCHAR(10), MC.MyDate, 101, NULL, 0)

How would i update to make empty string for null?
0
 
LVL 28

Assisted Solution

by:Ryan McCauley
Ryan McCauley earned 1000 total points
ID: 36496471
Your second value in COALESCE (the NULL one) is unnecessary - you could achieve the same thing by removing it:

COALESCE (Row1, 0) 

Open in new window


COALESCE is the exact same thing as ISNULL, but with more parameters - it just goes from parameter 1 to 2 to 3 and so on, until it finds one that's not NULL, and then it returns that. To return an empty string instead of zero, you'd change it to this:

COALESCE (Row1, '') 

Open in new window

0
 

Author Comment

by:vbnetcoder
ID: 36496496
Sorry

I am doing this currently

CONVERT(VARCHAR(10), MC.CoverageEffectiveDt, 101)

Now, i want to use COALESCE if null is returned
0
 
LVL 29

Expert Comment

by:sammySeltzer
ID: 36496543
select coalesce(CONVERT(VARCHAR(10), MC.CoverageEffectiveDt, 101),null,'') from yourtable
0
 
LVL 29

Expert Comment

by:sammySeltzer
ID: 36496569

@ryanmccauley is right though. It doesn't hurt anything at all but doesn't need to be there.

either above or this will suffice

select coalesce(CONVERT(VARCHAR(10), MC.CoverageEffectiveDt, 101),'') from yourtable
0
 

Author Closing Comment

by:vbnetcoder
ID: 36496599
ty
0
 
LVL 29

Expert Comment

by:sammySeltzer
ID: 36496655
you are very welcome
0

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