/SQL/How to query all tables mysql at the same time

How to query all tables mysql at the same time

function searchAllDB($search){
    global $mysqli;

    $out = "";

    $sql = "show tables";
    $rs = $mysqli->query($sql);
    if($rs->num_rows > 0){
        while($r = $rs->fetch_array()){
            $table = $r[0];
            $out .= $table.";";
            $sql_search = "select * from ".$table." where ";
            $sql_search_fields = Array();
            $sql2 = "SHOW COLUMNS FROM ".$table;
            $rs2 = $mysqli->query($sql2);
            if($rs2->num_rows > 0){
                while($r2 = $rs2->fetch_array()){
                    $column = $r2[0];
                    $sql_search_fields[] = $column." like('%".$search."%')";
                }
                $rs2->close();
            }
            $sql_search .= implode(" OR ", $sql_search_fields);
            $rs3 = $mysqli->query($sql_search);
            $out .= $rs3->num_rows."\n";
            if($rs3->num_rows > 0){
                $rs3->close();
            }
        }
        $rs->close();
    }

    return $out;
}

Source: stackoverflow.com

Similar codes

0 vote140 views1 answer
How to to get current date and time in sql
SQL
3 votes184 views2 answers
How to modify rows in SQL Server
SQL
16 votes172 views3 answers
MySQL 8.0 - Client does not support authentication protocol requested by server; consider upgrading MySQL client
SQL
0 vote140 views1 answer
Sql menampilkan data tabel
SQL
1 vote183 views1 answer
Postgres power
SQL
7 votes143 views6 answers
Reset identity column in sql server
SQL
0 vote188 views3 answers
Constraint sql
SQL
0 vote146 views2 answers
Mysql updating multiple column values from array variable
SQL
0 vote143 views1 answer
Change data type in mysql
SQL
5 votes170 views2 answers
Mysql create database charset utf8mb4
SQL