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Select statement with Unicode characters returns No Rows from a table with Oracle Text Index (Doc ID 1332215.1)

Last updated on FEBRUARY 02, 2019

Applies to:

Oracle Text - Version 10.2.0.5 to 12.2.0.1 [Release 10.2 to 12.2]
Information in this document applies to any platform.

Symptoms

Below Oracle Text query with umlaut characters returns "no rows" from a database with Unicode character set.

Running the query with divide symbol instead of umlautin the statement from SQL Developer returns "no rows":

SELECT * FROM info.DOKUMENT WHERE CONTAINS(DOKUMENT_BLOB,'Französisch') > 0;

no rows selected


Running the query with divide symbol instead of umlaut from SQL Developer returns many rows:

SELECT * FROM info.DOKUMENT WHERE CONTAINS(DOKUMENT_BLOB,'Franz÷sisch') > 0;

....

Cause

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In this Document
Symptoms
Cause
Solution
References


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