Tableplus run stored function mysql5/10/2023 Hence, our if block wasn’t executed and execution went to else block returning the value “No” as the guy was not eligible to vote. Let us check the eligibility of a 10-year-old guy by executing the following command – We can see that the output of isEligible(20) function execution returns the “Yes” as output because it is eligible to vote. Now, we want to check the eligibility for a 20-year-old guy then we can call our function in the following way – The output after copying and pasting the above statements on the MySQL command prompt terminal is as follows – We can call this function whenever we want to pass the value of the age for which you want to check eligibility. This will create a function named is eligible. Let us write a function and try to call them bypassing the age variable instead of statically declaring and initializing in the above example – Calls to other functions can also be included in this part of the function. When none of the types of function is mentioned, then MySQL will consider function to be NON-DETERMINISTIC by default.Ĭode of statements to be executed – We can write our program or code in this section of function that can contain conditional, looping statements, initializing and assigning the value of variables, and preparing and executing the database queries. However, if the function returns a different value for the same values of functions then we can call that function to be nondeterministic. When the function returns the same value for the same values of parameter then it is called deterministic. DETERMINISTIC – The function can be either deterministic or non-deterministic which needs to be specified here.Once, MySQL finds the RETURN statement while execution of the function, execution of the function is terminated and the value is returned. The type of value that will be returned needs to be specified after the RETURN clause. RETURN Datatype – We can return any type of value from the execution of the function.BEGIN and END – BEGIN keyword marks the beginning of the function while END marks the completion of function in MYSQL.IN OUT – These types of parameters are assigned the values while calling the function and the value can be modified or overwritten inside the function as well as referenced and used by the function.OUT – These are the parameters that can be assigned the values and overridden in the function but cannot be referenced by it.IN – These types of parameters are assigned the values while calling the function and the value cannot be modified or overwritten inside the function but only referenced and used by the function.These parameters can belong to either of the three types – A function can contain none, one or more than one parameter. parameter1, parameter2,… – We can pass the optional parameters to the functions that need to be declared while creating it in the () brackets.name_of_ function – It is the name of the function that needs to be created in MySQL.The following is the syntax of CREATE FUNCTION statement – ![]() ![]() Hadoop, Data Science, Statistics & others
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