Re: alter column in sql server

Author: Stephen Russell

Posted: 2018-09-06 at 09:42:48

I made a simple table,st_ex, with ST.... columns and then here is the

change script to strip the ST off:

/* To prevent any potential data loss issues, you should review this script

in detail before running it outside the context of the database designer.*/

BEGIN TRANSACTION

SET QUOTED_IDENTIFIER ON

SET ARITHABORT ON

SET NUMERIC_ROUNDABORT OFF

SET CONCAT_NULL_YIELDS_NULL ON

SET ANSI_NULLS ON

SET ANSI_PADDING ON

SET ANSI_WARNINGS ON

COMMIT

BEGIN TRANSACTION

GO

EXECUTE sp_rename N'dbo.st_ex.STID', N'Tmp_ID', 'COLUMN'

GO

EXECUTE sp_rename N'dbo.st_ex.STNAME', N'Tmp_Name_1', 'COLUMN'

GO

EXECUTE sp_rename N'dbo.st_ex.STAddress1', N'Tmp_ADDRESS1_2', 'COLUMN'

GO

EXECUTE sp_rename N'dbo.st_ex.Tmp_ID', N'ID', 'COLUMN'

GO

EXECUTE sp_rename N'dbo.st_ex.Tmp_Name_1', N'Name', 'COLUMN'

GO

EXECUTE sp_rename N'dbo.st_ex.Tmp_ADDRESS1_2', N'ADDRESS1', 'COLUMN'

GO

ALTER TABLE dbo.st_ex SET (LOCK_ESCALATION = TABLE)

GO

COMMIT

On Thu, Sep 6, 2018 at 9:28 AM Rafael Copquin <rafael.copquin@gmail.com>

wrote:

> I need to import a DBF table into SQL Server

> However, all the fields in the DBF table begin with the suffix ST (a

> previous programmer built the table in 1992, with the notion that all

> fields should have a specific suffix related to the table's purpose)

>

> But I just want the sql server table to have all its fields without that

> suffix, ie: STACCT should become ACCT, STNAME should become NAME and so on,

>

> The DBF table has 60 fields.

>

> I would like to issue an ALTER TABLE statement directly in the SQL Server

> Management Studio to remove the ST suffix from all its fields.

>

> But I have no idea on how to build a stored procedure with something

> similar to a DO WHILE loop in SQL Server, such that it would read a field

> name, remove the ST suffix and alter the name as desired. And then pass to

> the next field and do the same

>

> In fact, I must do the same with all the DBF tables from the old DOS

> system, because I am converting it to a VFP9 app with a SQL Server back

> end.

>

> Please show me a code snippet that would do that

>

> Thank you in advance

>

> Rafael Copquin

>

>

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[excessive quoting removed by server]

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