suchen

Heim  >  Artikel  >  Backend-Entwicklung  >  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
WBOYOriginal
2016-07-13 17:05:501102Durchsuche

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...
Stellungnahme：
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
Vorheriger Artikel：php 用户注册并且设置为己登录状态实现方法_PHP教程Nächster Artikel：php开发中常用到的数据库操作方法函数_PHP教程

In Verbindung stehende Artikel

Mehr sehen