... 语句序列号 statement sequence number 语句选择项 statement option 语句语法 statement syntax ...
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For each option, the case statement then attempts to identify the option, using either the short or long format and setting a variable.
对于每个选项,case语句会尝试识别该选项——使用短格式或长格式并设置一个变量。
So when you want to execute a statement many times, prepared statement is a better option.
所以,如果想多次执行一条语句,那么预置语句是更好的选择。
If you are tempted to use the GO to statement with a procedure name, consider the EVALUATE statement as an alternative option.
如果试图将GO TO语句与程序名一起使用,那么可以考虑将evaluate语句作为一个替换选项。
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