freewater

摘要： CASE_NOT_FOUNDCASE selectorWHEN selector_value_1 THEN statements_1WHEN selector_value_2 THEN statements_2...WHEN selector_value_n THEN statements_n[ ELSE else_statements ]END CASE;]The simple CASE statement runs the first statements for which selector_valueequals selector. Remaining conditions are . 阅读全文