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  • python - How can I concatenate columns without quotation marks in the results while avoiding SQL injection attacks using psycopg

    I want to concatenate with results like concat_columns here:In the example code below the results have
    Error[2]: Invalid argument supplied for foreach(), File: /www/wwwroot/roclinux.cn/tmp/view_htm_thread_list.inc.htm, Line: 71
    File: /www/wwwroot/roclinux.cn/tmp/view_htm_tag.htm, Line: 32, include(/www/wwwroot/roclinux.cn/tmp/view_htm_thread_list.inc.htm)
    File: /www/wwwroot/roclinux.cn/tmp/route_tag.php, Line: 114, include(/www/wwwroot/roclinux.cn/tmp/view_htm_tag.htm)
    File: /www/wwwroot/roclinux.cn/tmp/index.inc.php, Line: 138, include(/www/wwwroot/roclinux.cn/tmp/route_tag.php)
    File: /www/wwwroot/roclinux.cn/index.php, Line: 29, include(/www/wwwroot/roclinux.cn/tmp/index.inc.php)
    admin 13天前
    11 0