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Rockwell Automation FactoryTalk Report Expert User Guide User Manual

Page 142

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Chapter 9 Administering Report Expert

142

Rockwell Automation Publication RPTEXP-UM001H-EN-P-June 2014

Use this setting:

To modify:

ColorBest setting changes into the color from the
ColorBeyond setting on the OEE% chart.

ThresholdLowNormal

The limit of the OEE% value, after which the color from the
ColorLow setting changes into the color from the
ColorNormal setting on the OEE% chart.

ThresholdNormalBest

The limit of the OEE% value, after which the color from the
ColorNormal setting changes into the color from the
ColorBest setting on the OEE% chart.

TransactionIsolationLevel

The transaction isolation level to be used by DPE when
executing a set of SQL commands. Following are the
definitions of possible transaction isolation level values

supported by Report Expert:
Read Committed (0). Read only transactions that have not

been modified by other transactions and are committed.

Data can be changed by other transactions between
individual statements within the current transaction, but

the resulting data cannot be read again until such changes
are committed.
If you type 0 or leave this setting blank, this default isolation
level is used.
The behavior of Read Committed depends on the Read
Committed Snapshot database option set in Microsoft SQL

Server.
Read Uncommitted (1). Transactions running at the Read

Uncommitted isolation level do not use shared locks to

prevent other transactions from modifying data read by the
current transaction. This isolation level allows uncommitted

rows that have been modified to be read, therefore data can
be modified and rows can appear or disappear. To use the

Read Uncommitted isolation level, set the
TransactionIsolationLevel setting to 1. You may want to use

this option if a report times out due to uncommitted data
and therefore cannot display a subreport.
Snapshot (2). This isolation level specifies that data read

by any statement in the transaction will be consistent with
the data at the start of the transaction. Data modifications

made by other transactions after the start of the current
transaction are not visible in the current transaction. The

Snapshot isolation level does not prevent other transactions