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DB_TRANS_OPEN action

Function
The action establishes a new Connection to a database.
Declaration


Blok kódu
languageesl
themeConfluence
 DB_TRANS_OPEN dbObjIdent, handleIdent_Int, retCodeIdent_Int
Parameters


dbObjIdentinReference to an object of Database type.
handleIdent_IntoutIdentifier - the unique number (handle) of a Connection.
retCodeIdent_IntoutReturn code identifier.
Return code
The value of the parameter transHandle_Int. See the table oferror codes. It is possible to getextended error information.
Note: The maximum number of connections configured on the Database object can be limited by the Maximum connections parameter, with a value of 0 disabling the limitation. If the D2000 DBManager process consumes all connections, subsequent calls to DB_TRANS_OPEN attempting to establish a connection will return the error DBM_MAX_CONNECTIONS in the variable _ERR_NR_TRANS_EX.
Description
Identifier for a number (handle) of the Connection, is used for: 

 Return code describes the action success (__ERR_NO_ERROR).

Example
Database transactions.
Related topics
DB_TRANS_COMMIT
DB_TRANS_ROLLBACK
DB_TRANS_CLOSE

DB_CONNECT
DB_DELETE
DB_DISCONNECT
DB_INSERT
DB_INSUPD
DB_READ
DB_READ_BLOB
DB_UPDATE
DB_UPDATE_BLOB

PG_CONNECT
PG_DISCONNECT
PG_READ
PG_INSERT
PG_DELETE
PG_UPDATE

SQL_CONNECT
SQL_DISCONNECT
SQL_EXEC_DIRECT
SQL_EXEC_PROC

SQL_PREPARE
SQL_BINDIN
SQL_FETCH
SQL_FREE

All database related actions.
Info
titleRelated pages:

Script actions