Troubleshooting guide
•
primary database – the database that contains the data to be replicated to another
database (the replicate database) through a replication system. The primary database is the
source of replicated data in a replication system. Sometimes called the active database.
Contrast with
replicate database
. See also
primary data
.
•
primary key – a column or set of columns that uniquely identifies each row in a table.
•
primary site – the location or facility at which primary data servers and primary databases
are deployed to support normal business operations. Sometimes called the active site or
main site. See also
primary database
and
replicate site
.
•
primary table – a table used as a source for replication. Primary tables are defined in the
primary database schema. See also
primary data
and
primary database
.
•
primary transaction – a transaction that is committed in the primary database and
recorded in the primary database transaction log. See also
primary database
,
replicated
transaction
, and
transaction log
.
•
quiesce – to cause a system to go into a state in which further data changes are not allowed.
See also
quiescent
.
•
quiescent – in a replication system, a state in which all updates have been propagated to
their destinations. Some Replication Agent and Replication Server commands require that
you first quiesce the replication system.
In a database, a state in which all data updates are suspended so that transactions cannot
change any data, and the data and log devices are stable.
This term is interchangeable with quiesced and in quiesce. See also
quiesce
.
•
RASD – an abbreviation for Replication Agent System Database. Information in the
RASD is used by the primary database to recognize database structure or schema objects
in the transaction log.
•
RCL – an abbreviation for Replication Command Language, the command language used
to manage Replication Server. See also
Replication Server
.
•
RDBMS – an abbreviation for relational database management system, an application that
manages and controls relational databases. Compare with
DBMS
. See also
relational
database
.
•
relational database – a collection of data in which data is viewed as being stored in tables,
which consist of columns (data items) and rows (units of information). Relational
databases can be accessed by SQL requests. Compare with
database
. See also
SQL
.
•
replicate data – A set of data that is replicated from a primary database to a replicate
database by a replication system. See also
primary database
,
replication system
, and
replicate database
.
•
replicate database – a database that contains data replicated from another database (the
primary database) through a replication system. The replicate database is the database that
receives replicated data in a replication system. Contrast with
primary database
. See also
replicate data
,
replicated transaction
, and
replication system
.
CHAPTER 7: Glossary
Quick Start Guide for SAP HANA Database 109