How to write an sql statement that selects a number of rows with specific IDs?












1














I have a table that I would like to select a number of rows from using one sql statement. is this possible? If so, please could someone help me with the syntax for such a statement? I was going to retrieve the rows separately in a foreach loop (PHP).



// PHP
$USER_ID = user_2
$arraySearchRecords = [id_2, id_21, id_54, id_543];

foreach($arraySearchRecords as $docId){
$sql = "SELECT * FROM myTable WHERE userId='$USER_ID' AND documentId='$docId' LIMIT 1";
$result = $MYSQLI -> query($sql);

}









share|improve this question






















  • just read mysql WHERE IN()
    – Devsi Odedra
    Oct 24 at 8:51
















1














I have a table that I would like to select a number of rows from using one sql statement. is this possible? If so, please could someone help me with the syntax for such a statement? I was going to retrieve the rows separately in a foreach loop (PHP).



// PHP
$USER_ID = user_2
$arraySearchRecords = [id_2, id_21, id_54, id_543];

foreach($arraySearchRecords as $docId){
$sql = "SELECT * FROM myTable WHERE userId='$USER_ID' AND documentId='$docId' LIMIT 1";
$result = $MYSQLI -> query($sql);

}









share|improve this question






















  • just read mysql WHERE IN()
    – Devsi Odedra
    Oct 24 at 8:51














1












1








1







I have a table that I would like to select a number of rows from using one sql statement. is this possible? If so, please could someone help me with the syntax for such a statement? I was going to retrieve the rows separately in a foreach loop (PHP).



// PHP
$USER_ID = user_2
$arraySearchRecords = [id_2, id_21, id_54, id_543];

foreach($arraySearchRecords as $docId){
$sql = "SELECT * FROM myTable WHERE userId='$USER_ID' AND documentId='$docId' LIMIT 1";
$result = $MYSQLI -> query($sql);

}









share|improve this question













I have a table that I would like to select a number of rows from using one sql statement. is this possible? If so, please could someone help me with the syntax for such a statement? I was going to retrieve the rows separately in a foreach loop (PHP).



// PHP
$USER_ID = user_2
$arraySearchRecords = [id_2, id_21, id_54, id_543];

foreach($arraySearchRecords as $docId){
$sql = "SELECT * FROM myTable WHERE userId='$USER_ID' AND documentId='$docId' LIMIT 1";
$result = $MYSQLI -> query($sql);

}






php sql mysqli






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asked Oct 24 at 8:22









dean

1118




1118












  • just read mysql WHERE IN()
    – Devsi Odedra
    Oct 24 at 8:51


















  • just read mysql WHERE IN()
    – Devsi Odedra
    Oct 24 at 8:51
















just read mysql WHERE IN()
– Devsi Odedra
Oct 24 at 8:51




just read mysql WHERE IN()
– Devsi Odedra
Oct 24 at 8:51












2 Answers
2






active

oldest

votes


















1














implode your array as comma separated values like "id_2","id_21","id_54","id_543" and use IN clause



$clause = implode(",",$arraySearchRecord);
$clause = rtrim(",",$clause); //this will remove the last , that remains in the string

$sql="SELECT * from myTable WHERE documentId IN ($clause)";


This will retrieve all the records that match one of the values in the in clause



See the manual for more details



This way you don't need to iterate the array with the loop and repeat the query several times






share|improve this answer































    1














    Follow the steps:
    1. Create string from array $arraySearchRecord using implode.
    2. Use WHERE IN() clause to search more than one condition.



       <?php
    $USER_ID = user_2
    $condition = implode(',',$arraySearchRecord);
    $condition = rtrim(',',$condition); //used to remove the last
    $sql='SELECT * from myTable WHERE userId = "$USER_ID" AND documentId IN ($clause)';
    $result = $MYSQLI -> query($sql);
    ?>





    share|improve this answer























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      2 Answers
      2






      active

      oldest

      votes








      2 Answers
      2






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes









      1














      implode your array as comma separated values like "id_2","id_21","id_54","id_543" and use IN clause



      $clause = implode(",",$arraySearchRecord);
      $clause = rtrim(",",$clause); //this will remove the last , that remains in the string

      $sql="SELECT * from myTable WHERE documentId IN ($clause)";


      This will retrieve all the records that match one of the values in the in clause



      See the manual for more details



      This way you don't need to iterate the array with the loop and repeat the query several times






      share|improve this answer




























        1














        implode your array as comma separated values like "id_2","id_21","id_54","id_543" and use IN clause



        $clause = implode(",",$arraySearchRecord);
        $clause = rtrim(",",$clause); //this will remove the last , that remains in the string

        $sql="SELECT * from myTable WHERE documentId IN ($clause)";


        This will retrieve all the records that match one of the values in the in clause



        See the manual for more details



        This way you don't need to iterate the array with the loop and repeat the query several times






        share|improve this answer


























          1












          1








          1






          implode your array as comma separated values like "id_2","id_21","id_54","id_543" and use IN clause



          $clause = implode(",",$arraySearchRecord);
          $clause = rtrim(",",$clause); //this will remove the last , that remains in the string

          $sql="SELECT * from myTable WHERE documentId IN ($clause)";


          This will retrieve all the records that match one of the values in the in clause



          See the manual for more details



          This way you don't need to iterate the array with the loop and repeat the query several times






          share|improve this answer














          implode your array as comma separated values like "id_2","id_21","id_54","id_543" and use IN clause



          $clause = implode(",",$arraySearchRecord);
          $clause = rtrim(",",$clause); //this will remove the last , that remains in the string

          $sql="SELECT * from myTable WHERE documentId IN ($clause)";


          This will retrieve all the records that match one of the values in the in clause



          See the manual for more details



          This way you don't need to iterate the array with the loop and repeat the query several times







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Oct 24 at 8:34

























          answered Oct 24 at 8:26









          Lelio Faieta

          4,05552345




          4,05552345

























              1














              Follow the steps:
              1. Create string from array $arraySearchRecord using implode.
              2. Use WHERE IN() clause to search more than one condition.



                 <?php
              $USER_ID = user_2
              $condition = implode(',',$arraySearchRecord);
              $condition = rtrim(',',$condition); //used to remove the last
              $sql='SELECT * from myTable WHERE userId = "$USER_ID" AND documentId IN ($clause)';
              $result = $MYSQLI -> query($sql);
              ?>





              share|improve this answer




























                1














                Follow the steps:
                1. Create string from array $arraySearchRecord using implode.
                2. Use WHERE IN() clause to search more than one condition.



                   <?php
                $USER_ID = user_2
                $condition = implode(',',$arraySearchRecord);
                $condition = rtrim(',',$condition); //used to remove the last
                $sql='SELECT * from myTable WHERE userId = "$USER_ID" AND documentId IN ($clause)';
                $result = $MYSQLI -> query($sql);
                ?>





                share|improve this answer


























                  1












                  1








                  1






                  Follow the steps:
                  1. Create string from array $arraySearchRecord using implode.
                  2. Use WHERE IN() clause to search more than one condition.



                     <?php
                  $USER_ID = user_2
                  $condition = implode(',',$arraySearchRecord);
                  $condition = rtrim(',',$condition); //used to remove the last
                  $sql='SELECT * from myTable WHERE userId = "$USER_ID" AND documentId IN ($clause)';
                  $result = $MYSQLI -> query($sql);
                  ?>





                  share|improve this answer














                  Follow the steps:
                  1. Create string from array $arraySearchRecord using implode.
                  2. Use WHERE IN() clause to search more than one condition.



                     <?php
                  $USER_ID = user_2
                  $condition = implode(',',$arraySearchRecord);
                  $condition = rtrim(',',$condition); //used to remove the last
                  $sql='SELECT * from myTable WHERE userId = "$USER_ID" AND documentId IN ($clause)';
                  $result = $MYSQLI -> query($sql);
                  ?>






                  share|improve this answer














                  share|improve this answer



                  share|improve this answer








                  edited Nov 16 at 11:29









                  shaan

                  152




                  152










                  answered Oct 24 at 10:10









                  Shanteshwar Inde

                  408212




                  408212






























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