INSERT
  7
  SQL - Language Statements
 
 
  INSERT
  create new rows in a table
 
 
  INSERT
 
 
INSERT INTO table [ ( column [, ...] ) ]
    { DEFAULT VALUES | VALUES ( { expression | DEFAULT } [, ...] ) [, ...] | query }
    [ RETURNING * | output_expression [ [ AS ] output_name ] [, ...] ]
 
 
  Description
  
   INSERT inserts new rows into a table.
   One can insert one or more rows specified by value expressions,
   or zero or more rows resulting from a query.
  
  
   The target column names can be listed in any order.  If no list of
   column names is given at all, the default is all the columns of the
   table in their declared order; or the first N> column
   names, if there are only N> columns supplied by the
   VALUES> clause or query>.  The values
   supplied by the VALUES> clause or query> are
   associated with the explicit or implicit column list left-to-right.
  
  
   Each column not present in the explicit or implicit column list will be
   filled with a default value, either its declared default value
   or null if there is none.
  
  
   If the expression for any column is not of the correct data type,
   automatic type conversion will be attempted.
  
  
   The optional RETURNING> clause causes INSERT>
   to compute and return value(s) based on each row actually inserted.
   This is primarily useful for obtaining values that were supplied by
   defaults, such as a serial sequence number.  However, any expression
   using the table's columns is allowed.  The syntax of the
   RETURNING> list is identical to that of the output list
   of SELECT>.
  
  
   You must have INSERT privilege on a table in
   order to insert into it.  If a column list is specified, you only
   need INSERT privilege on the listed columns.
   Use of the RETURNING> clause requires SELECT>
   privilege on all columns mentioned in RETURNING>.
   If you use the query clause to insert rows from a
   query, you of course need to have SELECT privilege on
   any table or column used in the query.
  
 
 
  Parameters
  
   
    table
    
     
      The name (optionally schema-qualified) of an existing table.
     
    
   
   
    column
    
     
      The name of a column in table.
      The column name can be qualified with a subfield name or array
      subscript, if needed.  (Inserting into only some fields of a
      composite column leaves the other fields null.)
     
    
   
   
    DEFAULT VALUES
    
     
      All columns will be filled with their default values.
     
    
   
   
    expression
    
     
      An expression or value to assign to the corresponding column.
     
    
   
   
    DEFAULT
    
     
      The corresponding column will be filled with
      its default value.
     
    
   
   
    query
    
     
      A query (SELECT statement) that supplies the
      rows to be inserted.  Refer to the
      
      statement for a description of the syntax.
     
    
   
   
    output_expression
    
     
      An expression to be computed and returned by the INSERT>
      command after each row is inserted.  The expression can use any
      column names of the table.
      Write *> to return all columns of the inserted row(s).
     
    
   
   
    output_name
    
     
      A name to use for a returned column.
     
    
   
  
 
 
  Outputs
  
   On successful completion, an INSERT> command returns a command
   tag of the form
INSERT oid count
   The count is the number
   of rows inserted.  If count
   is exactly one, and the target table has OIDs, then
   oid is the
   OID assigned to the inserted row.  Otherwise
   oid is zero.
  
  
   If the INSERT> command contains a RETURNING>
   clause, the result will be similar to that of a SELECT>
   statement containing the columns and values defined in the
   RETURNING> list, computed over the row(s) inserted by the
   command.
  
 
 
  Examples
  
   Insert a single row into table films:
INSERT INTO films VALUES
    ('UA502', 'Bananas', 105, '1971-07-13', 'Comedy', '82 minutes');
  
  
   In this example, the len column is
   omitted and therefore it will have the default value:
INSERT INTO films (code, title, did, date_prod, kind)
    VALUES ('T_601', 'Yojimbo', 106, '1961-06-16', 'Drama');
  
  
   This example uses the DEFAULT clause for
   the date columns rather than specifying a value:
INSERT INTO films VALUES
    ('UA502', 'Bananas', 105, DEFAULT, 'Comedy', '82 minutes');
INSERT INTO films (code, title, did, date_prod, kind)
    VALUES ('T_601', 'Yojimbo', 106, DEFAULT, 'Drama');
  
  
   To insert a row consisting entirely of default values:
INSERT INTO films DEFAULT VALUES;
  
  
   To insert multiple rows using the multirow VALUES> syntax:
INSERT INTO films (code, title, did, date_prod, kind) VALUES
    ('B6717', 'Tampopo', 110, '1985-02-10', 'Comedy'),
    ('HG120', 'The Dinner Game', 140, DEFAULT, 'Comedy');
  
  
   This example inserts some rows into table
   films from a table tmp_films
   with the same column layout as films:
INSERT INTO films SELECT * FROM tmp_films WHERE date_prod < '2004-05-07';
  
  
   This example inserts into array columns:
-- Create an empty 3x3 gameboard for noughts-and-crosses
INSERT INTO tictactoe (game, board[1:3][1:3])
    VALUES (1, '{{" "," "," "},{" "," "," "},{" "," "," "}}');
-- The subscripts in the above example aren't really needed
INSERT INTO tictactoe (game, board)
    VALUES (2, '{{X," "," "},{" ",O," "},{" ",X," "}}');
  
  
   Insert a single row into table distributors, returning
   the sequence number generated by the DEFAULT clause:
INSERT INTO distributors (did, dname) VALUES (DEFAULT, 'XYZ Widgets')
   RETURNING did;
  
 
 
  Compatibility
  
   INSERT conforms to the SQL standard, except that
   the RETURNING> clause is a
   PostgreSQL extension.  Also, the case in
   which a column name list is omitted, but not all the columns are
   filled from the VALUES> clause or query>,
   is disallowed by the standard.
  
  
   Possible limitations of the query clause are documented under
   .