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if else statement

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JJ297
Aged Yak Warrior

940 Posts

Posted - 2010-03-17 : 11:30:56

If a person doesn't enter a date in the date field this goes into the DB 1/1/1900 12:00:00 AM

How can I get the word NULL to go into the DB when a date isn't entered into the date field?

I just need it for the these two highlighted below:

@DteToFO datetime,
@DteBack datetime,

Thanks!

ALTER procedure [dbo].[UpdateClaimant]
@Claim char(6),
@PIC char(2),
@FinalLaf varchar(2),
@DteIn datetime,
@Remarks varchar(255),
@BICAdj varchar(3),
@NoBIC varchar(255),
@IA int,
@FD int,
@DteToFO datetime,
@DteBack datetime,
@Results int,
@Amt money


AS update TestData

set 
[Claim] = @Claim,
[PIC] = @PIC,
[FinalLaf] = @FinalLaf,
[DteIn] = @DteIn,
[Remarks] = @Remarks,
[BICAdj] = @BICAdj,
[NoBIC] = @NoBIC,
[IA] = @IA,
[FD] = @FD,
[DteToFO] = @DteToFO,
[DteBack] = @DteBack,
[Results] = @Results,
[Amt] = @Amt

Where  claim=@claim and pic=@pic

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2010-03-17 : 11:35:01

pass NULL value explicitly for date parameters

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/

JJ297
Aged Yak Warrior

940 Posts

Posted - 2010-03-17 : 11:39:43

Thank you so much for helping me. I'm working on a project that's due today. Thanks that worked!

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2010-03-17 : 11:42:18

welcome

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/

JJ297
Aged Yak Warrior

940 Posts

Posted - 2010-03-17 : 11:42:36

Back again

I added this to the stored procedure:
[DteToFO] = NULL,
[DteBack] = NULL,

So when I went back to add a date it didn't add it. What am I doing wrong?

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2010-03-17 : 11:43:49

can you show the insert code?

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/

JJ297
Aged Yak Warrior

940 Posts

Posted - 2010-03-17 : 11:46:31

I tried this but it didn't work:

if dtetofo = "" then
[DteToFO] = NULL,
else
[DteToFO] = @DteToFO,

ALTER procedure [dbo].[UpdateClaimant]
@Claim char(6),
@PIC char(2),
@FinalLaf varchar(2),
@DteIn datetime,
@Remarks varchar(255),
@BICAdj varchar(3),
@NoBIC varchar(255),
@IA int,
@FD int,
@DteToFO datetime,
@DteBack datetime,
@Results int,
@Amt money


AS update TestData

set 
[Claim] = @Claim,
[PIC] = @PIC,
[FinalLaf] = @FinalLaf,
[DteIn] = @DteIn,
[Remarks] = @Remarks,
[BICAdj] = @BICAdj,
[NoBIC] = @NoBIC,
[IA] = @IA,
[FD] = @FD,
[DteToFO] = @DteToFO,
[DteBack] = @DteBack,
[Results] = @Results,
[Amt] = @Amt

Where  claim=@claim and pic=@pic

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2010-03-17 : 11:50:55

is that if ..else inside sql? or is that front end code?

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/

JJ297
Aged Yak Warrior

940 Posts

Posted - 2010-03-17 : 11:53:25

Yes it's in sql. I tried this but Incorrect syntax near the keyword 'CASE'.

ALTER procedure [dbo].[UpdateClaimant]
@Claim char(6),
@PIC char(2),
@FinalLaf varchar(2),
@DteIn datetime,
@Remarks varchar(255),
@BICAdj varchar(3),
@NoBIC varchar(255),
@IA int,
@FD int,
@DteToFO datetime,
@DteBack datetime,
@Results int,
@Amt money

AS update TestData

set
[Claim] = @Claim,
[PIC] = @PIC,
[FinalLaf] = @FinalLaf,
[DteIn] = @DteIn,
[Remarks] = @Remarks,
[BICAdj] = @BICAdj,
[NoBIC] = @NoBIC,
[IA] = @IA,
[FD] = @FD,
CASE
WHEN (dtetofo)= Null THEN Null
ELSE
[DteToFO] = @DteToFO end,
[DteBack] = @DteBack,
[Results] = @Results,
[Amt] = @Amt

Where claim=@claim and pic=@pic

JJ297
Aged Yak Warrior

940 Posts

Posted - 2010-03-17 : 12:19:30

Figured it out...I added it to the front end:

 If DteToFOtxt.Text = "" Then
                .Parameters.AddWithValue("@DteToFO", DBNull.Value)
            Else
                .Parameters.AddWithValue("@DteToFO", DteToFOtxt.Text)
            End If

            If DteFromtxt.Text = "" Then
                .Parameters.AddWithValue("@DteBack", DBNull.Value)
            Else
                .Parameters.AddWithValue("@DteBack", DteFromtxt.Text)
            End If

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