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    The database is a file generated by the train collector in .db3 format. It is not valid to replace replace with wildcards in the sql statement. Use regexp to find the matching prompt no such function like regexp. Can regular expressions or wildcards be u...

    May.22,2021
  • A query sql, let's see how to write it.

    For the items of o2o, the table is as follows: Store shop id name Commodity goods id name cat_id shop_id price Category cat id name search: query the goods that meet the criteria according to the category, list the store, and list the product data. I...

    Mar.19,2021
  • MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
    MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3a7b1-2c20e.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
    MySQL Errno : 1021
    Message : Disk full (/tmp/#sql-temptable-64f5-1b3a7b1-2c20e.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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