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    Command:

    start_transaction

    
    
    
    

    SYNOPSIS

           START TRANSACTION [ transaction_mode [, ...] ]
    
           where transaction_mode is one of:
    
               ISOLATION LEVEL { SERIALIZABLE | REPEATABLE READ | READ COMMITTED | READ UNCOMMITTED }
               READ WRITE | READ ONLY
    
    
    

    DESCRIPTION

           This  command begins a new transaction block. If the isolation level or
           read/write mode is specified, the new transaction has those  character-
           istics,  as  if SET TRANSACTION [set_transaction(7)] was executed. This
           is the same as the BEGIN [begin(7)] command.
    
    
    

    PARAMETERS

           Refer to SET TRANSACTION [set_transaction(7)] for  information  on  the
           meaning of the parameters to this statement.
    
    
    

    COMPATIBILITY

           In  the  standard,  it  is  not necessary to issue START TRANSACTION to
           start a transaction block: any SQL command implicitly begins  a  block.
           PostgreSQL's  behavior can be seen as implicitly issuing a COMMIT after
           each command that does not follow START TRANSACTION (or BEGIN), and  it
           is  therefore  often  called ''autocommit''.  Other relational database
           systems might offer an autocommit feature as a convenience.
    
           The SQL standard requires commas between successive  transaction_modes,
           but  for historical reasons PostgreSQL allows the commas to be omitted.
    
           See also the compatibility section  of  SET  TRANSACTION  [set_transac-
           tion(7)].
    
    
    

    SEE ALSO

           BEGIN [begin(7)], COMMIT [commit(7)], ROLLBACK [rollback(7)], SAVEPOINT
           [savepoint(7)], SET TRANSACTION [set_transaction(7)]
    
    
    

    SQL - Language Statements 2014-02-17 START TRANSACTION(7)

    
    
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