How to change all column name to UPPER CASE for all the tables in one database of MS SQL Server?

问题

is there any sql statement used to change all column name to UPPER CASE for all tables in database? MS SQL Server.

I got a sql to do that, but not sure whether it`s correct.

1. run SQL below

   select 'exec sp_rename '''+b.name+'.'+a.name+''','''+UPPER(a.name)+''',''column'''
   from syscolumns a, sysobjects b 
   where a.id=b.id and b.type='U' 
   order by b.name
   

2. copy and execute the result above

回答1:

If you are upgrading an application from SQL Server 2000 to a later edition, and you are struggeling with SQL Server case sensitivity, I would suggest you look into the SQL Server 2000 compatibility setting before you do drastic changes to the database.

In SQL Server 2008 Management Studio

1. Right-click the database and select properties in the context menu
2. Go to the Options page
3. In the third dropdown from the top. select Compatibility Level: SQL Server 2000

At least that is time consuming.

Edit: Since it appears that OP is upgrading his database from SQL Server 2005 to a "new" database on SQL Server 2005, the above strategy might not be optimal.

回答2:

I don't believe there is one command to do this.

However you should be able to write a query which does this, using 1 or 2 cursors and a query like:

select t.name As TableName, c.Column_Name
from sys.tables t
INNER JOIN information_schema.columns c ON c.Table_Name = t.Name
ORDER BY t.name 

This should return all table and columns in your database.

Then use:

sp_RENAME 'TableName.[OldColumnName]' , '[NewColumnName]', 'COLUMN'

To rename each column.

回答3:

Short answer - no.

If you need to do this (and many studies suggest that all upper case names detract from readability), you'll have to generate new tables with these upper case names, copy the data from the old to the new table, drop the old tables, rename the new tables, and re-establish all of the foreign key relationships.

Is there a good reason to do this?

回答4:

Extending Bravax answer, This will give you a list of commands to execute

select 'sp_RENAME ''' + t.name + '.' + QUOTENAME(c.Column_Name) + ''', ''' + UPPER(c.Column_Name) + ''', ''COLUMN'';\n go' As Command
from sys.tables t
INNER JOIN information_schema.columns c ON c.Table_Name = t.Name
ORDER BY t.name 

You might need to add 'go' in-between lines if you are running as a bulk

来源：https://stackoverflow.com/questions/5270416/how-to-change-all-column-name-to-upper-case-for-all-the-tables-in-one-database-o