The select len (code), * from jztgx2018 prompted lack expression???????-CodePudding

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The select len (code), * from jztgx2018 prompted lack expression???????

Time：09-17

I often use Microsoft SQL, today with the orcale, find some grammar is different, ask: select len (code), * from jztgx2018 this expression, what's wrong?

CodePudding user response:

Length (), and this situation cannot be directly *, select length (code), a. * from jztgx2018 a

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