in plsql, i saw some one use for loop without define the loop index, and the database can execute correctly. but i can't find the description of this syntax in oracle documentation. can anyone explain it? great thanks!in plsql, i saw some one use for loop without d
阅读背景：
在plsql中，我看到有一个用于循环而没有定义循环索引，为什么？怎么样？
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