Heim > Backend-Entwicklung > PHP-Tutorial > php update数据更新简单实例_PHP教程

php update数据更新简单实例_PHP教程

WBOY
Freigeben: 2016-07-13 17:05:50
Original
1138 Leute haben es durchsucht

sql update记录更新详细实例

语法:

[ WITH [...n] ]
UPDATE
    [ TOP (expression) [ PERCENT ] ]
    { { table_alias | | rowset_function_limited
         [ WITH ( [ ...n ] ) ]
      }
      | @table_variable   
    }
    SET
        { column_name= { expression | DEFAULT | NULL }
          | { udt_column_name.{ { property_name= expression
                                | field_name=expression }
                                | method_name(argument [ ,...n ] )
                              }
            }
          | column_name { .WRITE (expression,@Offset,@Length) }
          | @variable=expression
          | @variable= column=expression
          | column_name { += | -= | *= | /= | %= | &= | ^= | |= } expression
          | @variable { += | -= | *= | /= | %= | &= | ^= | |= } expression
          | @variable=column { += | -= | *= | /= | %= | &= | ^= | |= } expression
        } [ ,...n ]

    [ ]
    [ FROM { } [ ,...n ] ]
    [ WHERE {
            | { [ CURRENT OF
                  { { [ GLOBAL ] cursor_name }
                      | cursor_variable_name
                  }
                ]
              }
            }
    ]
    [ OPTION ( [ ,...n ] ) ]
[ ; ]

::=
{
    [ server_name . database_name . schema_name .
    | database_name .[ schema_name ] .
    | schema_name .
    ]
    table_or_view_name}

实例 php教程

   mysql教程_connect("mysql153.secureserver.net","java2s","password");
   mysql_select_db("java2s");

   $query = "UPDATE Employee SET salary = '39.99' ";
   $result = mysql_query($query);
   echo "There were ".mysql_affected_rows()." product(s) affected. ";

?>


利用update 更新数据

   mysql_connect("mysql153.secureserver.net","java2s","password");
   mysql_select_db("java2s");

   $rowID = "0001";
   $name = "Kate";
   $price = "12";

      $query = "UPDATE Employee SET name='$name', price='$price' WHERE ID='$rowID'";
      $result = mysql_query($query);

      if ($result)
         echo "

The developer has been successfully updated.

";
      else
         echo "

There was a problem updating the developer.

";

 

?>

www.bkjia.comtruehttp://www.bkjia.com/PHPjc/630745.htmlTechArticlesql update记录更新详细实例 语法: [ WITH common_table_expression [...n] ] UPDATE [ TOP (expression) [ PERCENT ] ] { { table_alias | object | rowset_function_limited [ WITH...
Quelle:php.cn
Erklärung dieser Website
Der Inhalt dieses Artikels wird freiwillig von Internetnutzern beigesteuert und das Urheberrecht liegt beim ursprünglichen Autor. Diese Website übernimmt keine entsprechende rechtliche Verantwortung. Wenn Sie Inhalte finden, bei denen der Verdacht eines Plagiats oder einer Rechtsverletzung besteht, wenden Sie sich bitte an admin@php.cn
Beliebte Tutorials
Mehr>
Neueste Downloads
Mehr>
Web-Effekte
Quellcode der Website
Website-Materialien
Frontend-Vorlage