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#### Len The Len function in Expression Builder returns the number of characters in a specified string. ### Syntax Len(string) ### Result Type Integer ### Arguments The following table describes the arguments for the function.
Argument | Description
--- | ---
string | The field name or string expression from which the characters are counted. If the string is blank, 0 (zero) is returned. If the string contains Null, Null is returned.
NOTE: The language-independent field names and the field-name syntax used in any example expressions in this topic are the field names and the field-name syntax that were used in Expression Builder in releases earlier than Release 29 Service Pack 1. These examples are still valid. However, if you select the corresponding fields for an expression from the Fields list in Expression Builder in Release 29 Service Pack 1 or later, then the field names and the field-name syntax will be different from those shown in the examples. It is recommended that you always select the fields for your expressions from the Fields list in Expression Builder, so that the field names and the field-name syntax are always correct. For more information about the field names and the field-name syntax in expressions, see About Expressions. ### Examples The following example returns the value 18: Len("Oracle Corporation") The following example returns the value 19 if the field contains a valid timestamp: Len([<CreatedDate>]) The following example returns the value 19: Len(Timestamp()) returns 19 #### Related Topics See the following topics for related Expression Builder information: About Expression Builder Using Expression Builder Expression Builder Functions

Published August 2022 | Copyright © 2005, 2022, Oracle and/or its affiliates. Legal Notices.