预定义常量

以下常量由本扩展模块定义，因此只有在本扩展模块被编译到 PHP 中，或者在运行时被动态加载后才有效。

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.