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Don Burleson Blog 







PLS-00306: wrong number or types of arguments tips

Oracle Database Tips by Donald BurlesonAugust 5, 2015

Question:  I have defined this cursor:

cursor maxpencursor is
   count(playerno) as maxpenalty
having  . . . ;

Then, when I open the cursor:

open maxpencursor(v_userid);

This causes the following PLS-000306 error:

Error report:
ORA-06550: line 33, column 10:
PLS-00306: wrong number or types of arguments in call to 'MAXPENCURSOR'

How to I fix this PLS-0306 error?

Answer:  The oerr utility show this for the PLS-00306 error:

PLS-00306: wrong number or types of arguments in call to 'string'
Cause: This error occurs when the named subprogram call cannot be matched to any declaration for that subprogram name. The subprogram name might be misspelled, a parameter might have the wrong datatype, the declaration might be faulty, or the declaration might be placed incorrectly in the block structure. For example, this error occurs if the built-in square root function SQRT is called with a misspelled name or with a parameter of the wrong datatype.

Action: Check the spelling and declaration of the subprogram name. Also confirm that its call is correct, its parameters are of the right datatype, and, if it is not a built-in function, that its declaration is placed correctly in the block structure.

In this case you have defined TWO columns in the cursor and you are attempting to fetch only one of the values:

cursor maxpencursor is
   count(playerno) as maxpenalty

   penalties  . . . ;

Below the open statement is expecting two arguments, one for each column:

open maxpencursor(v_userid);

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