As discussed in the previous article, the continue statement causes the containing loop to start the next iteration.
如前面的文章中所述,continue语句使包含它的循环开始下一次迭代。
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We could have used a prepared statement and just reset the data each time, but we decided to recreate it for each iteration of the loop here for completeness.
When a for statement is executed, a cursor is implicitly declared such that for each iteration of the for loop, the next row is the result set if fetched.