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Question mark appears in the stored procedure display results, urgent

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Post time: 2020-3-9 22:00:01
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Query results using stored procedures, one of which shows a lot of nvarchar ??? Question mark

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Post time: 2020-5-31 17:45:01
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Is there any character set data that is not installed in other systems in this column?
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Post time: 2020-5-31 19:15:01
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Exceeded the maximum length?
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Post time: 2020-5-31 22:30:01
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The nvarchar type should not be. Didn't add N when inserting, you open the table directly to see if it is also?
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 Author| Post time: 2020-6-1 01:45:01
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It is normal to open the table in SQL, but the result of the query through the stored procedure has a question mark
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Post time: 2020-6-1 20:45:02
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Is caused by the defined sorting
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Post time: 2020-6-3 08:45:01
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ls, how to define sorting?
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