In this blog we will learn how to use like operator in FetchXML?
Use like operator in FetchXML
The LIKE operator is used to search for a specified pattern in a column.
Generally There are two wildcards often used in conjunction with the LIKE operator:
1. The percent sign (%) represents zero, one, or multiple characters
2. The underscore sign (_) represents one, single character
FetchXML LIKE Examples
The following FetchXML selects all customers with a CustomerName starting with “a”:
<fetch mapping=”logical” version=”1.0″>
<entity name=”customers”>
<all-attributes />
<filter>
<condition attribute=”customername” operator=”like” value=”a%” />
</filter>
</entity>
</fetch>
The following fetchxml selects all customers with a CustomerName ending with “a”:
<fetch mapping=”logical” version=”1.0″>
<entity name=”customers”>
<all-attributes />
<filter>
<condition attribute=”customername” operator=”like” value=”%a” />
</filter>
</entity>
</fetch>
The following FetchXML selects all customers with a CustomerName that have “xm” in any position:
<fetch mapping=”logical” version=”1.0″>
<entity name=”customers”>
<all-attributes />
<filter>
<condition attribute=”customername” operator=”like” value=”%xm%” />
</filter>
</entity>
</fetch>
The following fetchxml selects all customers with a CustomerName that have “a” in the second position:
<fetch mapping=”logical” version=”1.0″>
<entity name=”customers”>
<all-attributes />
<filter>
<condition attribute=”customername” operator=”like” value=”_a%” />
</filter>
</entity>
</fetch>
The following fetchxml selects all customers with a CustomerName that starts with “c” and are at least 3 characters in length:
<fetch mapping=”logical” version=”1.0″>
<entity name=”customers”>
<all-attributes />
<filter>
<condition attribute=”customername” operator=”like” value=”c__%” />
</filter>
</entity>
</fetch>
The following fetchxml selects all customers with a ContactName that starts with “a” and ends with “n”:
<fetch mapping=”logical” version=”1.0″>
<entity name=”customers”>
<all-attributes />
<filter>
<condition attribute=”contactname” operator=”like” value=”a%n” />
</filter>
</entity>
</fetch>
The following fetchxml selects all customers with a CustomerName that does NOT start with “a”:
<fetch mapping=”logical” version=”1.0″>
<entity name=”customers”>
<all-attributes />
<filter>
<condition attribute=”customername” operator=”not-like” value=”a%” />
</filter>
</entity>
</fetch>
