I am attempting, using the below statement, to update multiple rows: update mis_user.mis_testr ts set ts.CURRENT_BALANCE = (select dr.current_balance from MIS_USER.MIS_DATAREPAIR dr, MIS_USER.mis_testr t where ts.ORGANIZATION = DR.ORGANIZATION and ts.REPORT_PERIOD = DR.REPORT_PERIOD and ts.ITEM_NUMBER = DR.ITEM_NUMBER and ts.STOREROOM = DR.STOREROOM) However, I keep getting the below error... I've tried fixing this with subqueries but to no avail ORA-01427: single-row subquery returns more than one row Also, when I set the statement to (IN) instead of (=) I get ORA-00927: missing equal sign any thoughts?
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