[*-)]how to delete all columns except one column for the corresponding column name......?

hi friends,

          i've a table with (columns) username, content,data,........... i need to delete all column names(i.e.,content,data,........) except username for the specified username. eg: consider username=mahendran. i've to delete the values in the content,data,...............for the username=mahendran. but username should exist.

how to do that?pls help me......Confused

Don't forget to "Mark as Answer" if you are satisfied.
7/15/2007 6:55:48 PM
asp.net.sql-datasource 29906 articles. 0 followers. Follow

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Use the following 

DataTable.Columns.Remove takes the column name or column reference as argument.

To remove column using it's index, you can use DataTable.Columns.RemoveAt method.

Farooq Kaiser, MCTS, MCP
Please Mark As Answer if my answer helped you.
7/15/2007 8:21:14 PM

 hi farooq,

            i need the SQL query for delete command. i wrote 

delete [contact],[title] from <table_name> where userid=<user_id>

but it is not working.what is the correct format?

Don't forget to "Mark as Answer" if you are satisfied.
7/16/2007 7:02:50 AM

If you want to change your table structure, you use Alter Table along with Drop Column instead of Delete which is for your records. Here is a sample:


DROP COLUMN col2, col3

You can find more information about SQL DML(SQL Data Manipulation Language) and DDL(SQL Data Definition Language) if you are interested about the topic.


7/16/2007 3:02:51 PM

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