Tipos Resource
IBM DB2 Funções
IBM DB2
PHP Manual

# Constantes pré-definidas

As contantes abaixo são definidas por esta extensão e somente estarão disponíveis quando a extensão foi compilada com o PHP ou carregada dinamicamente durante a execução.

`DB2_BINARY` (integer)
  Specifies that binary data shall be returned as is. This is the default mode.
`DB2_CONVERT` (integer)
  Specifies that binary data shall be converted to a hexadecimal encoding and returned as an ASCII string.
`DB2_PASSTHRU` (integer)
  Specifies that binary data shall be converted to a `NULL` value.
`DB2_SCROLLABLE` (integer)
  Specifies a scrollable cursor for a statement resource. This mode enables random access to rows in a result set, but currently is supported only by IBM DB2 Universal Database.
`DB2_FORWARD_ONLY` (integer)
  Specifies a forward-only cursor for a statement resource. This is the default cursor type and is supported on all database servers.
`DB2_PARAM_IN` (integer)
  Specifies the PHP variable should be bound as an IN parameter for a stored procedure.
`DB2_PARAM_OUT` (integer)
  Specifies the PHP variable should be bound as an OUT parameter for a stored procedure.
`DB2_PARAM_INOUT` (integer)
  Specifies the PHP variable should be bound as an INOUT parameter for a stored procedure.
`DB2_PARAM_FILE` (integer)
  Specifies that the column should be bound directly to a file for input.
`DB2_AUTOCOMMIT_ON` (integer)
  Specifies that autocommit should be turned on.
`DB2_AUTOCOMMIT_OFF` (integer)
  Specifies that autocommit should be turned off.
`DB2_DOUBLE` (integer)
  Specifies that the variable should be bound as a DOUBLE, FLOAT, or REAL data type.
`DB2_LONG` (integer)
  Specifies that the variable should be bound as a SMALLINT, INTEGER, or BIGINT data type.
`DB2_CHAR` (integer)
  Specifies that the variable should be bound as a CHAR or VARCHAR data type.
`DB2_CASE_NATURAL` (integer)
  Specifies that column names will be returned in their natural case.
`DB2_CASE_LOWER` (integer)
  Specifies that column names will be returned in lower case.
`DB2_CASE_UPPER` (integer)
  Specifies that column names will be returned in upper case.
`DB2_DEFERRED_PREPARE_ON` (integer)
  Specifies that deferred prepare should be turned on for the specified statement resource.
`DB2_DEFERRED_PREPARE_OFF` (integer)
  Specifies that deferred prepare should be turned off for the specified statement resource.

Tipos Resource
IBM DB2 Funções
IBM DB2
PHP Manual