PLS-01905: character string buffer too small

Cause: An error was encountered while moving a character string from a source to a destination. This error occurs if, for example, an attempt is made to move a character string of 10 characters into a 1 character buffer. The cause of this error may not always be obvious. For example, the following will result in this error: 

a varchar2(1); 

b number; 

b := 10; 

a := b; 

An error results because an implicit conversion causes the number 10 to become the character string '10', which does not fit in the character buffer of 1 allocated for the variable a.

Action: First, look for character string assignment statements where the buffer size is mismatched. If there are none found, then consider the implicit conversion case illustrated in the example above.

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