Oracle SQL wildcard not returning an expected result set
Oracle SQL wildcard not returning an expected result set
26522-Aug-2023
Updated on 23-Aug-2023
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Oracle SQL wildcard not returning an expected result set
Aryan Kumar
23-Aug-2023There are a few reasons why an Oracle SQL wildcard might not be returning an expected result set. Here are a few of the most common ones:
%
wildcard can match zero or more characters, but the_
wildcard can only match a single character.WHERE
clause, not theSELECT
clause.ESCAPE
character.To troubleshoot an Oracle SQL wildcard that is not returning an expected result set, you can use the following steps:
EXPLAIN PLAN
command to get a detailed explanation of how the query is being executed. This can help you identify any problems with the query execution plan.tkprof
tool to profile the query and identify any performance bottlenecks.If you are still having trouble troubleshooting the wildcard, you can contact Oracle support for assistance.
Here are some additional tips to help you use Oracle SQL wildcards correctly:
ESCAPE
character to match special characters, such as spaces and quotation marks.LIKE
operator to specify the wildcard pattern.IN
operator to match a list of values.BETWEEN
operator to match a range of values.