Subtract values from SELECT in SQL
Question
I have the following 2 queries.:
shipManagementInvoiceNetValue
:SELECT IFNULL (SUM (shipManagementInvoice.netto ), 0) AS shipManagementInvoiceNetValue FROM tckopf AS shipManagementInvoice WHERE shipManagementInvoice.referenzid = 1 AND shipManagementInvoice.btyp = 5
shipManagementCreditNoteNetValue
:SELECT IFNULL (SUM (shipManagementCreditNote.netto), 0) AS shipManagementCreditNoteNetValue FROM tckopf AS shipManagementCreditNote WHERE shipManagementCreditNote.referenzid = 1 AND shipManagementCreditNote.btyp = 6
but I need the result shipManagementInvoiceNetValue - shipManagementCreditNoteNetValue
. I'm using a HXTT JDBC DBF driver that supports more than SQL92.
How can I realize that?
No correct solution
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