SQL SELECT或INSERT INTO查询

Question

I'm working with SQL Server 2000. I need to take the results from one column ( VALIMIT ) and insert them into another column ( VALIMIT2012 ) in the same table ( lending_limits ).

My question is do I need to do a SELECT query first, or do I just start with an INSERT INTO query and what the proper syntax would be for the INSERT INTO query.

Answer 1

You can do this with an UPDATE statement:

update lending_limits
set VALIMIT2012 = VALIMIT

Answer 2

Neither. You don't insert columns, you insert rows, so what you want is an update :

update SomeTable
set VALIMIT2012 = VALIMIT

Note: It looks like you have one column per year, which is bad database design. If you have different data for each year, you should put that in a separate table, so that you get the year as data, not part of the column name.

Answer 3

UPDATE TableName SET VALIMIT2012 = VALIMIT