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11g Release 2 (11.2)

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CCREF1700

13 CTX_ULEXER Package

This chapter provides reference information on how to use the CTX_ULEXER PL/SQL package with the user-defined lexer.

CTX_ULEXER declares the following type:

Name Description
WILDCARD_TAB Index-by table type that you use to specify the offset of characters to be treated as wildcard characters by the user-defined lexer query procedure.

CCREF2179

WILDCARD_TAB

TYPE WILDCARD_TAB IS TABLE OF NUMBER INDEX BY BINARY_INTEGER;

Use this index-by table type to specify the offset of those characters in the query word to be treated as wildcard characters by the user-defined lexer query procedure.

Character offset information follows USC-2 codepoint semantics.

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