1. Reference for Oracle GoldenGate
  2. Oracle GoldenGate Common Components
  3. Oracle GoldenGate Parameters
  4. FETCHUSERIDALIAS

FETCHUSERIDALIAS

Valid For

Extract on Oracle; data pump Extract is not valid

Description

Use the FETCHUSERIDALIAS parameter to specify authentication for an Oracle GoldenGate process to use when logging into a database. The use of FETCHUSERIDALIAS requires the use of an Oracle GoldenGate credential store. Specify FETCHUSERIDALIAS before any TABLE or MAP entries in the parameter file.

FETCHUSERIDALIAS Compared to FETCHUSERID

FETCHUSERIDALIAS enables you to specify an alias, rather than a user ID and password, in the parameter file. The user IDs and encrypted passwords are stored in a credential store. FETCHUSERIDALIAS supports databases running on Linux, UNIX, and Windows platforms.

FETCHUSERID requires either specifying the clear-text password in the parameter file or encrypting it with the ENCRYPT PASSWORD command and, optionally, storing an encryption key in an ENCKEYS file. FETCHUSERID supports a broad range of the databases that Oracle GoldenGate supports. In addition, it supports the use of an operating system login for Oracle databases.

FETCHUSERID Requirements

Note:

Logins that require a database user and password must be stored in the Oracle GoldenGate credential store.

Use FETCHUSERIDALIAS for Oracle GoldenGate processes that connect to an Oracle database. The purpose of this connection is to offload fetch operations to an Active Data Guard standby database, which eliminates overhead that would otherwise be placed on the source database.

  • The SOURCEDB or TARGETDB parameter is not required.

  • Specify the alias of a database credential that is stored in the Oracle GoldenGate credential store.

  • (Oracle Enterprise Edition earlier than 11.2.0.2) Special database privileges are required for the FETCHUSERIDALIAS user when Extract is configured to use LOGRETENTION. These privileges might have been granted when Oracle GoldenGate was installed.

  • (Oracle Standard or Enterprise Edition 11.2.0.2 or later) To use FETCHUSERIDALIAS for an Extract group that is configured for integrated capture, the user must have the privileges granted in the dbms_goldengate_auth.grant_admin_privilege.

  • To support capture from an Oracle container database, the user that is specified with FETCHUSERID must log on to the root container and must be a common database user. A connect string must be supplied for this user, for example: C##GGADM@FINANCE. For more information, see Establishing Oracle GoldenGate Credentials in Using Oracle GoldenGate for Oracle Database.

  • The connection specified by FETCHUSERI or FETCHUSERIDALIAS must be to an Active Data Guard standby database of the source database.

  • FETCHUSERID can be specified anywhere in the parameter file. Ordering does not matter. It can come before or after a TABLE or MAP statement.

Default

None

Syntax

FETCHUSERIDALIAS alias [DOMAIN domain] [SYSDBA]
alias

Specifies the alias of a database user credential that is stored in the Oracle GoldenGate credential store.

DOMAIN domain

Specifies the credential store domain for the specified alias. A valid domain entry must exist in the credential store for the specified alias.

SYSDBA

Specifies that the user logs in as sysdba.

Example

fetchuseridalias gg_user@adg_inst password pwd