countrymeister
asked on
How to check if a column exists in a tablle
I have a proc p_GetData that is invoked by many other procs,
A temporary table is passed to the proc p_GetData as a paramater, @TableName
I would like to know if a particular column exists in the temp table, can someone provide the sql for that
CREATE PROCEDURE p_GetData
@TableName varchar(100),
@ServerName varchar(50),
@UpdateFlag int,
@SuccessFlag tinyint OUTPUT
AS
A temporary table is passed to the proc p_GetData as a paramater, @TableName
I would like to know if a particular column exists in the temp table, can someone provide the sql for that
CREATE PROCEDURE p_GetData
@TableName varchar(100),
@ServerName varchar(50),
@UpdateFlag int,
@SuccessFlag tinyint OUTPUT
AS
ASKER
rpkhare:
Doe this work in SQL Server 2000
Doe this work in SQL Server 2000
ASKER CERTIFIED SOLUTION
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ASKER
Can you please let me know which is better
SELECT Count(*) FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = '@TableName' AND COLUMN_NAME = 'Action'
select object_name(id) as TableName, * from syscolumns where lower(name) like 'action'
and object_name(id) = '@TableName'
SELECT Count(*) FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = '@TableName' AND COLUMN_NAME = 'Action'
select object_name(id) as TableName, * from syscolumns where lower(name) like 'action'
and object_name(id) = '@TableName'
The former seems to be more close to what you are desiring.
Hi
here in this query
SELECT Count(*) FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = '@TableName' AND COLUMN_NAME = 'Action'
you are putting @TableName within quotes which will produce error because @TableName is a variable that is containing the name of your table, so remove those quotes.
SELECT Count(*) FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = @TableName AND COLUMN_NAME = 'Action'
here in this query
SELECT Count(*) FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = '@TableName' AND COLUMN_NAME = 'Action'
you are putting @TableName within quotes which will produce error because @TableName is a variable that is containing the name of your table, so remove those quotes.
SELECT Count(*) FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = @TableName AND COLUMN_NAME = 'Action'
ASKER
For whatever reason it does not work, I would like to know if I create a global table in another proc and then pass this to proc p_GetData , will it detect if the @TableName has the column I am looking for
ASKER
This does not seem to work for global tables so I need to close this qt
TABLE_NAME = 'MyTable' AND COLUMN_NAME = 'abcd'