ORA-01425 when using 'like' or 'escape' on NVARCHAR2 column

(Doc ID 1470516.1)

Last updated on MAY 08, 2017

Applies to:

Oracle Server - Standard Edition - Version 11.1.0.7 to 11.1.0.7 [Release 11.1]
Information in this document applies to any platform.

Symptoms

You are using using 'like' or 'escape' on NVARCHAR2 column and you get the following error:

ERROR at line 1:
ORA-01425: escape character must be character string of length 1

Here is an example of possible failing syntax:
SQL> select * from t1 where col2 like '%\$$%' escape '\';



Changes

 You may see this problem while setting Cursor_sharing=force.

Cause

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