On Fri, 2006-02-03 at 13:24, Sean Berry wrote:
> I have four tables that all have the same column names (50 in each.)
>
> I have created an admin program to edit, delete and add records to the
> tables and would like to use the table name as a variable in each query so
> the code can be used for each of the 4 tables. Usually I would do something
> like this by having 1 table with special column to categorize the records as
> I am doing with each table, but this specific application requires that I do
> it with 4 tables instead.
>
> To ensure that string are quoted properly without any hassle I use the
> execute function like so assuming c is my cursor object...
>
> c.execute("update tableName set col1 = %s, col2 = %s, col3 = %s, ...",
> (val1, val2, val3, ...))
>
> But, not I want to do this with a variable tableName. If I add it to the
> tuple of parameters in the second arg before val1 and replace tableName with
> %s, then the tableName will be quoted in the query, causing an error.
>
> What is the best (easiest) way for me to accomplish this? I know it may be
> a stupid question but I just can't figure it out.
As you have discovered, the table name is not allowed to be a parameter.
You have to build the query string for the appropriate table, then hand
it to execute for filling in the actual parameters:
queryString = "update "+tableName+" set col1=%s, col2=%s,..."
c.execute(queryString, (val1, val2,...))
HTH,
Carsten.
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