sql update記錄更新詳細實例
語法:
[ WITH <common_table_expression> [...n] ]
UPDATE
[ TOP (expression) [ PERCENT ] ]
{ { table_alias | <object> | rowset_function_limited
[ WITH ( <Table_Hint_Limited> [ ...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 ]
[ <OUTPUT Clause> ]
[ FROM { <table_source> } [ ,...n ] ]
[ WHERE { <search_condition>
| { [ CURRENT OF
{ { [ GLOBAL ] cursor_name }
| cursor_variable_name
}
]
}
}
]
[ OPTION ( <query_hint> [ ,...n ] ) ]
[ ; ]
<object> ::=
{
[ server_name . database_name . schema_name .
| database_name .[ schema_name ] .
| schema_name .
]
table_or_view_name}
實例 php教程
<?php
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 更新數據
<?php
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 "<p>The developer has been successfully updated.</p>";
else
echo "<p>There was a problem updating the developer.</p>";
?>
