I'm summing up an accounting entries in a table.
The field I'm summing is amount.
There is a interger field called TransactionType.
For some of the entries,depending on the transactiontype, I need to sum the negative of the amount.
Is there a case statement that could do this.
I was trying it with 2 selects and a union but I got errors.
Anyone who can help out I would greatly appreciate it.