For help! Take two of the same project in table form first reunification of difference sum-CodePudding

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For help! Take two of the same project in table form first reunification of difference sum

Time：02-05

Value is we have a SQL statements, each take each month is the month KMBH=1151/2221 of the two subjects (each WLDWBH same, same XMBH do poor) after reunification sum + 1151 subjects without XMBH and same WLDWBH numerical and same

CodePudding user response:

this is not a problem of SQL, this is a Chinese reading comprehension questions

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The base class

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