Troubleshooting guide

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table – in a relational DBMS, a two-dimensional array of data or a named data object that
contains a specific number of unordered rows composed of a group of columns that are
specific for the table. See also database .
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transaction – a unit of work in a database that can include zero, one, or many operations
(including insert, update, and delete operations), and that is either applied or rejected as a
whole. Each SQL statement that modifies data can be treated as a separate transaction, if
the database is so configured. See also SQL .
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transactional consistency – A condition in which all transactions in the primary database
are applied in the replicate database, and in the same order that they were applied in the
primary database.
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transaction log – generally, the log of transactions that affect the data managed by a data
server. Replication Agent reads the transaction log to identify and acquire the transactions
to be replicated from the primary database. See also
Replication Agent , primary database ,
and Replication Server .
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transaction replication – a data replication method that copies data-changing operations
from a primary database to a replicate database. See also data replication .
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UDB – IBM DB2 Universal Database (formerly IBM DB2 for Linux, UNIX, and
Windows).
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WAN – an abbreviation for “wide area network,” a system of local-area networks (LANs)
connected together with data communication lines. Contrast with LAN .
CHAPTER 7: Glossary
Quick Start Guide for SAP HANA Database 111