Write a plsql

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A function is same as a procedure except that it returns a value. Therefore, all the discussions of the previous chapter are true for functions too. The optional parameter list contains name, mode and types of the parameters. IN represents the value that will be passed from outside and OUT represents the parameter that will be used to return a value outside of the procedure.
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PL/SQL - Procedures

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PL/SQL Tables and User-Defined Records

A variable is a meaningful name which facilitates a programmer to store data temporarily during the execution of code. It is nothing except a name given to a storage area. A variable should not exceed 30 characters. Its letter optionally followed by more letters, dollar signs, numerals, underscore etc. A data type with size, scale or precision limit is called a constrained declaration.
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PL/SQL Cursor

The parameter mode specifies whether a parameter can be read from or write to. An IN parameter is read-only. You can reference an IN parameter inside a procedure, but you cannot change its value.
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Join Stack Overflow to learn, share knowledge, and build your career. Connect and share knowledge within a single location that is structured and easy to search. Display the department name and the total salary expenditure of the department from the Employee table. To find the department name and the salary of the person from the particular department must be the output.
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