31.Db2的循环控制语句loop用法?答:loop例子:open c1;set at_end = 0;set numrec = 0;fetch_loop: 1loopfetch c1 into proc_cusnbr, proc_cuscrd;if sqlcode = 0 thenset proc_cuscrd = proc_cuscrd * 1.2;update ordapplib.customerset cuscrd = proc_cuscrdwhere current ...
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