dongpao5127 2019-02-15 04:33
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插入现有值并从另一个表中对其进行排序

Insert the existing value and sort it from another table

I'm trying to call data from table A and but table A is sorted from table B.

Detail: Table A stores "ID" and table B stores numbers, I want to sort table A based on the numbers in table B.

I tried the code below but it didn't work

$result = $db->Query("INSERT INTO `session`(`id`)VALUES('".$id['tableA']."' ON SELECT * FROM `tableB` WHERE `number`<'500' )") ;

After I run the code does not save to the database.

I hope the experts can solve my problem. thank you

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  • dreamfly2016 2019-02-15 06:01
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    remove the ON in your syntax as the right query is:

    INSERT INTO [table] SELECT * FROM [anothertable]
    

    as explained in detail in MySQL documentation

    As for your situation, the right query should be:

    INSERT INTO `session`(`id`) SELECT `id` FROM `tableB` WHERE `number` < 500;
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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