UPDATE ÃüÁî

UPDATE

   table_name WITH ( <table_hint_limited> [ ...n ] )
   | view_name
   | rowset_function_limited

SET
{
   column_name = { expression | DEFAULT | NULL }
   | @variable = expression
   | @variable = column = expression
}  [ ,...n ]
{
   {
      [ FROM { <table_source> } [ ,...n ] ]
      [ WHERE <search_condition> ]
   }
   | 
   [ WHERE CURRENT OF
      {
         { [ GLOBAL ] cursor_name }
         | cursor_variable_name
      }
   ]

[ OPTION ( <query_hint> [ ,...n ] ) ]
<table_source> ::=
  table_name [ [AS] table_alias ] [ WITH ( <table_hint> [ ,...n ] ) ]
| view_name [ [ AS ] table_alias ]
| rowset_function [ [ AS ] table_alias ]
| derived_table [ AS ] table_alias [ ( column_alias [ ,...n ] ) ]
| <joined_table>
<joined_table> ::=
<table_source> <join_type> <table_source> ON <search_condition>
| <table_source> CROSS JOIN <table_source>
| <joined_table>
<join_type> ::=
[  INNER
   |{
      { LEFT | RIGHT | FULL } [OUTER]
    }
]
[ <join_hint> ]
JOIN
<table_hint_limited> ::=
{
   FASTFIRSTROW
   | HOLDLOCK
   | PAGLOCK
   | READCOMMITTED
   | REPEATABLEREAD
   | ROWLOCK
   | SERIALIZABLE
   | TABLOCK
   | TABLOCKX
   | UPDLOCK 
}
<table_hint> ::=
{  INDEX ( index_val [ ,...n ] )
   | FASTFIRSTROW
   | HOLDLOCK
   | NOLOCK
   | PAGLOCK
   | READCOMMITTED
   | READPAST
   | READUNCOMMITTED
   | REPEATABLEREAD
   | ROWLOCK
   | SERIALIZABLE
   | TABLOCK
   | TABLOCKX
   | UPDLOCK 
<query_hint> ::=
{
   { HASH | ORDER } GROUP
   | { CONCAT | HASH | MERGE } UNION
   | {LOOP | MERGE | HASH } JOIN
   | FAST number_rows
   | FORCE ORDER
   | MAXDOP
   | ROBUST PLAN
   | KEEP PLAN 
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