GOLDENGATE

COLS & COLSEXCEPT FILTER in goldengate

                    COLS & COLSEXCEPT filter parameters are used to exclude or include(select) few columns of a table from goldengate extraction. i.e if a table on source has 5 column, and requirement is to replicat only 3 columns, then COLS and COLSEXCEPT filter can be used These […]

Schema replication using oracle goldengate

In this tutorial, we will explain how to do schema replication in goldengate. Schema replication means, replicating all the tables of a schema.   1. add supplemental for all tables of a schema [ SOURCE ] add trandata <schema_name>.*

2. Prepare extract file [ SOURCE ]

3. Prepare extract pump parameter file [ […]

Enable DDL replication in goldengate

In this below tutorial, we will enable DDL replication for a table, which is already part of  goldengate replication and currently only DML transactions are getting replicated. TABLE_NAME = APPLIANCE.CLASSTAB1 To enable DDL replication, We need to run few SQL scripts(provided under $GG_HOME)  on the source database. and update the extract parameter file. 1. Run role_setup.sql where […]

Setting up Table replication in oracle goldengate

In this below tutorial, we will setup one-way goldengate replication for below two tables from database SRCDB to TRGDB. DBACLASS.EMP; DBACLASS.DEPT; SEE – Oracle goldengate Fundamentals NOTE – Here we are replicating only DML transactions PREREQUISITE: Make sure the goldengate installation is completed and manager process is running on both source and target hosts. REFER: Installation […]

Obey command in goldengate

Like we execute .sql file against SQL, we can write multiple goldengate commands inside a .oby file and execute it against GGSCI prompt using OBEY command. EXAMPLE: In the below example, we will add supplemental login(add trandata) for multiple tables using obey command. 1. Create a text file and put goldengate commands.

2. execute obey […]

OGG-01028 partial record at sequence extract abended

         If extract process in goldengate abend with OGG-01028  partial record at sequence  error, then you below solution.   PROBLEM:( snippet from the extract log)

  SOLUTION: There are two methods to fix it. 1. Restart the extract ( most of the time restart fix the issue) 2. If restart is not […]

Defgen utility in Oracle goldengate

     If source and target table structures are different, like source has then we need to use definition file in replicat file. Example: Here we will generate definition file of a table DBACLASS.EMPLOYEE from source database and use it in target db.   1. Create defgen parameter file

This will create the parameter file […]

ERROR: No checkpoint table specified for ADD REPLICAT

           While adding the replicate, you may get the below error. GGSCI (sec75-2) 2> add replicat LOYTSTR, exttrail /ggatebss/oradata/RBM12C/R4 ERROR: No checkpoint table specified for ADD REPLICAT. Solution:   Checkpoint table need to be created in the replication side. 1. Login to ggsci with dblogin GGSCI (sec75-2) 4> dblogin USERID TEST_GGATE, […]

OGG-00665 OCI Error describe for query

Problem:    In goldengate version 12, while starting the extract,it may abend with below error.  2016-04-11 12:31:10  ERROR   OGG-00665  OCI Error describe for query (status = 942-ORA-00942: table or view does not exist), SQL<SELECT MOD(t.property, POWER(2, 64)) as property,   opq.flags   FROM sys.tab$ t, sys.opqtype$ opq   WHERE t.obj# = 4214597 and t.obj#=opq.obj# (+) >.   It […]

OGG-01031 There is a problem in network communication

                  While starting the datapump in goldengate version 12.2.0 , you may get below error.   2016-04-14 15:14:39  ERROR   OGG-01031  There is a problem in network communication, a remote file problem, encryption keys for target and source do not match (if using ENCRYPT) or an unknown error […]

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