optional parameter in oracle stored procedure

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These types of parameters are used to send values to stored procedures. These types of parameters are used to get values from stored procedures. This is similar to a return type in functions. These types of parameters are used to send values and get values from stored procedures. If a parameter is not explicitly defined optional out parameter in oracle parameter type, optional out parameter in oracle by default it is an IN type parameter.

This is similar to passing parameters in programming languages. We can pass values to the stored procedure through these parameters or variables. This type of parameter is a read only parameter. We can assign optional out parameter in oracle value of IN type parameter to a variable or use it in a query, but we cannot change its value inside the procedure.

IN - is optional, by default it is a IN type parameter. This is a write-only parameter i. The parameter should be explicity declared as OUT parameter. The IN OUT parameter allows us to pass values into a procedure and get output values from the procedure.

This parameter is used if the value of the IN parameter can be changed in the calling program. By using IN OUT parameter we can pass values into a parameter and return a value to the calling program using the same parameter. But this is possible only if the value passed to the procedure and output value have a same datatype. This parameter is used if the value of the parameter will be changed in the procedure.

The below examples show how to create stored procedures using the above three types of parameters. General syntax to pass a IN parameter is. Enter your search terms Submit search form.

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In sqlplus you devlare variables. I think the same works in the sql developer worksheet. When I did this: Can you try this: You'll need to provide correct numbers. If not, don't forget to close the question. I've requested that this question be closed as follows: I have supplied the correct solution. I'm afraid I'll have to object to accepting http: That code as posted will not work.

In fact if you try it you should receive an error. Below is an example showing this. The example based on my post works. The other one returns the error: Question has a verified solution. Sign up with Google. Sign up with LinkedIn. Sign up with Facebook. I would like to receive news, updates and offers from Experts Exchange. All Courses From novice to tech pro — start learning today. Course of the Month 22 days, 5 hours left to enroll. Premium members can enroll in this course at no extra cost.

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