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Procedure overloading in oracle pl/sql
Employees 3 where rownum 3; first_name hire_date salary, donald 21-JUN-99 2600, douglas 13-JAN-00 2600.
I will change the package to colin mcrae rally 2005 plus codes allow setting a global date format for use by the package as well as adding function to comma separate appropriately.
Employees where rownum 3; That's not so bad.
SQL select first_name, hire_date, salary 2 from.Overloading is associated with the object-oriented idea of "polymorphism" whereby a single procedure may be context-sensitive, depending on the input parameters and it is also used in the object-oriented Oracle with the idea of member methods.Hire_date lary END loop; UTL_file.The technique for overloading a method procedure or function is identical to the overloading of standard procedure or function.Question: What does it mean to "overload" an Oracle stored procedure or function? .Create OR replace package stringer AS procedure set_format_mask( p_format_mask IN varchar2 function stringify(p_field IN varchar2) return varchar2; function stringify(p_field IN number) return varchar2; function stringify(p_field IN date) return varchar2; function stringify_csv(p_field IN varchar2) return varchar2; function stringify_csv(p_field IN number) return varchar2; function stringify_csv(p_field IN date).Hire_date v_string : v_string lary UTL_file.I don't really need a varchar2 function, but if I don't have one, I have to know what the data types are coming in and I am right back where I was before.In real life, I have had to dump table to text files so many times I can't count them.For a simple Oracle example of overloading, consider the wwv_flow_nd procedure. .Specifically, the employees table.A very simple example of this is the use of the operator in working with characters it can be used for concatenation and if used with numerical values it would be used for addition. .It is the idea that the functionality of a PL/SQL stored procedure of function can be changed based on the input datatype.I will have a function for each data type that I need to convert.Fclose( v_fh END; You can also call the string t20 world cup schedule 2012 pdf functions directly from your SQL if you are writing an online interface.Employees where rownum 3; v_fh UTL_le_type; begin v_fh : UTL_pen file_DIR 'emps.At least not when only three columns are involved.Employees where rownum 3; Connected to: Oracle Database 10g Enterprise Edition Release.0 - Production.
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A programming example of overloading would look as follows.