Bagaimana cara menggemakan tabel dengan hasil gabungan dari dua kueri serupa dari dua basis data berbeda?

Sunting :

Dengan asumsi hasil Anda seperti ini :

Tulis

number company    db1 Count
1      SuperCorp  5
2      SuperCorp  10

Laporkan

number company    db2 Count
2      SuperCorp  10
3      SuperCorp  20

Jika ingin menampilkan tabel seperti ini

number company    db1 Count db2 Count
1      SuperCorp  5         0
2      SuperCorp  10        10
3      SuperCorp  0         20

Anda perlu menggabungkan hasil dari dua kueri sebelum mencetaknya ke layar. Ini dimungkinkan berkat kolom 'angka' Anda yang dapat digunakan sebagai kunci larik PHP Anda.

Anda juga perlu memodifikasi kueri SQL Anda untuk menyertakan kolom palsu yang mewakili jumlah basis data lain :

$sql1 = "SELECT num.number AS Number, com.name As company, count(*)   As \"db1 count\", 0   As \"db2 count\" 
                FROM db1.db.job_processing AS jp
                LEFT JOIN db1.db.number AS num ON num.id=jp.number_id 
                LEFT JOIN db1.db.company AS com on com.id=num.company_id 
                WHERE jp.show=1 AND jp.processing_complete=1 
                AND jp.call_start_time BETWEEN '2016-12-17' AND '2017-01-03'
                GROUP BY Number
                ORDER BY Number
                LIMIT 20";

$sql2 = "SELECT num.number AS Number, com.name AS company, COUNT(*) AS \"db2 Count\", 0   As \"db1 count\" 
            FROM db2.db.job_processing AS jp
            LEFT JOIN db2.db.number AS num ON num.id=jp.number_id 
            LEFT JOIN db2.db.company AS com on com.id=num.company_id 
            WHERE jp.show=1 AND jp.processing_complete=1 
            AND jp.call_start_time BETWEEN '2016-12-17' AND '2017-01-03'
            GROUP BY Number
            LIMIT 20";

Dan kemudian gabungkan 2 hasil sebelumnya untuk menampilkannya, seperti ini :

$results = array();
while($row = $result1->fetch_assoc()) {
     //Adding all the 1st query results 
     $results[$row['number']] = $row;
}

while($row = $result2->fetch_assoc()) {
     if(! isset($results[$row['number']]) {
          //Mean's this row is not present in the 1st database, so add it
          $results[$row['number']] = $row;
     }else {
          //Just merging the db2 Count from the 2nd database since other fields are the same
          $results[$row['number']]['db2 Count'] = $row['db2 Count'];
     }         
}


if ($results) {
      echo"<TABLE><caption>Total Call Count Overview</caption><TR>
      <TH>Number</TH>
      <TH>Company</TH>
      <TH>db1 Count</TH>
      <TH>db2 Count</TH></TR>";

    foreach($results as $row) {
         echo"<TR><TD>". $row["number"]. "</TD>";
         echo"<TD>". $row["company"]. "</TD>";
         echo"<TD>". $row["db1 Count"]. "</TD>";
         echo"<TD>". $row["db2 Count"]. "</TD></TR>";
    }
    echo"</TABLE>";
} else {
     echo"0 Results";
}