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Oracle® OLAP DML Reference
11g Release 1 (11.1)

B28126-03
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REDO

The REDO command re-executes a statement that you entered earlier in your session. The statement is retrieved from the command log, which is a list of up to 256 statements that you have entered most recently during the current session. REDO enables you to changes in the statement before it is re-executed.

Note:

REDO statements themselves are not included in the command log; however, the statements re-executed by REDO are included.

Syntax

REDO [number|index] 'original' 'replacement' [specifier

Arguments

number

A positive INTEGER that indicates the number of the statement to be re-executed. You can display the statements, with their numbers, using a RECAP statement.

index

A negative INTEGER or 0 (zero) that indicates the position of the statement to be re-executed relative to the end of the command log. The most recent statement is 0, the one before that is -1, and so on. The default is 0.

original

A text literal that is part of the statement to be re-executed.

replacement

A text literal that should replace original when the statement is re-executed.

specifier

One of the specifiers listed in Table 10-2, "Valid Values for REDO specifier". Each specifier indicates where text replacement should occur in the re-executed statement.

Table 10-2 Valid Values for REDO specifier

Specifier Meaning

FIRST

Indicates that only the first occurrence of original should be changed to replacement.

LAST

Indicates that only the last occurrence of original should be changed to replacement.

n

A number indicating which occurrence of original should be changed to replacement. For example, 3 indicates the third occurrence.

ALL

Indicates that all occurrences of original should be changed to replacement

*

Indicates that all occurrences of original should be changed to replacement.


The default is ALL. When you do not provide a specifier, all occurrences of original will be changed to replacement.

Notes

REDO with No Argument

When you type REDO without an argument, the most recent statement will be re-executed.

Case-Sensitivity

When matching original with the text of the statement to be re-executed, REDO ignores case differences. For example, assume you specify AT as original, REDO will match it with at, At, aT, or AT in the statement.

When replacing original with replacement, REDO retains the case of all characters in replacement. For example, assume you specify ShOw as replacement, that is exactly how it will appear in the re-executed statement.

Examples

Example 10-90 Redoing a Report

The following output is the result of recap 2 statement.

   COMMAND LOG
6: fetch w 20 down division total(actual)
7: listnames

The following REDO statement re-executes the FETCH statement with a different variable.

REDO 6 'actual' 'budget'