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Null value

Author

Topic

Gayatri D.Patil
Yak Posting Veteran

58 Posts

Posted - 2008-04-11 : 05:58:23

hello sir,
i want to pass the null value in table.
if i write "NULL"
then Blanck value passed.
i want to pass NULL world.
gayatri

elancaster
A very urgent SQL Yakette

1208 Posts

Posted - 2008-04-11 : 06:07:01

how are you entering it into the table?


declare @t table (col varchar(10))

insert into @t
          select null
union all select 'null'

Gayatri D.Patil
Yak Posting Veteran

58 Posts

Posted - 2008-04-11 : 06:39:30

really i don't understand
pls again tell me.
thanku

raky
Aged Yak Warrior

767 Posts

Posted - 2008-04-11 : 06:42:16

quote:
Originally posted by Gayatri D.Patil

really i don't understand
pls again tell me.
thanku

Please post the query which is used by you

elancaster
A very urgent SQL Yakette

1208 Posts

Posted - 2008-04-11 : 06:43:10

i asked a question of how you are trying to pass this null value into your table.

then posted a sample bit of code for you to run to see the difference between passing NULL and a string of 'NULL'

Em

Gayatri D.Patil
Yak Posting Veteran

58 Posts

Posted - 2008-04-11 : 07:24:56

hello sir,

sir
i want UpdatedBy,UpdateDate
these two fields NULL.

string[] strAryCols = new string[9];
string[] strAryValues = new string[9];

strAryCols[0] = "IndexCode";
strAryCols[1] = "DescrLong";
strAryCols[2] = "DescrShort";
strAryCols[3] = "CtryCode";
strAryCols[4] = "StatusCode";
strAryCols[5] = "CreatedBy";
strAryCols[6] = "CreatedDateTime";
strAryCols[7] = "UpdatedBy";
strAryCols

= "UpdateDateTime";

strAryValues[0] = "" + txtIndexCode.Text + "";
strAryValues[1] = "'" + txtDescrLong.Text + "'";
strAryValues[2] = "'" + txtDescrShort.Text + "'";
strAryValues[3] = "" + cmbCntryCode.SelectedValue + "";
strAryValues[4] = "'" + cmbStatus.Text + "'";
strAryValues[5] = "'" + Environment.UserName.ToString() + "'";
strAryValues[6] = DateTime.Now.ToShortDateString();
strAryValues[7] = "Null";
strAryValues

= "Null";
try
{

int iRow = objDal.funInsert("Asset.tIndexMaster", strAryCols, strAryValues);
funFillGrid();

harsh_athalye
Master Smack Fu Yak Hacker

5581 Posts

Posted - 2008-04-11 : 07:33:39

Remove the double-quotes around NULL.

strAryValues[7] = null;
strAryValues = null;

Harsh Athalye
India.
"The IMPOSSIBLE is often UNTRIED"

madhivanan
Premature Yak Congratulator

22864 Posts

Posted - 2008-04-11 : 09:02:59

Note that NULL is entirely differenct from 'NULL'

select case when NULL='NULL' then 'equal' else 'not equal' end

Madhivanan

Failing to plan is Planning to fail

Gayatri D.Patil
Yak Posting Veteran

58 Posts

Posted - 2008-04-14 : 06:12:04

quote:
Originally posted by harsh_athalye

Remove the double-quotes around NULL.

strAryValues[7] = null;
strAryValues = null;

Harsh Athalye
India.
"The IMPOSSIBLE is often UNTRIED"

Gayatri D.Patil
Yak Posting Veteran

58 Posts

Posted - 2008-04-14 : 06:13:20

sir,
when i remove the double quotes syantax error is come.
gayatri

harsh_athalye
Master Smack Fu Yak Hacker

5581 Posts

Posted - 2008-04-14 : 06:20:46

I assume it is C#.Net. What is the error you get? You should write null (all lowercase).

Harsh Athalye
India.
"The IMPOSSIBLE is often UNTRIED"

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