Oracle游标分批循环处理总结

此处理方式适用于数据量巨大的循环处理方面，能有效提循环处理效率，具体语句块示例如下所示：

DECLARE
CURSOR cur IS
SELECT * FROM t_table;
TYPE rec IS TABLE OF t_table%ROWTYPE;
recs rec;
BEGIN
OPEN cur;
WHILE (TRUE) LOOP
FETCH cur BULK COLLECT
INTO recs LIMIT 100;
FORALL i IN 1 .. recs.COUNT
INSERT INTO t_table VALUES recs (i);
COMMIT;
EXIT WHEN cur%NOTFOUND;
END LOOP;
CLOSE cur;
END;
/