How can I return multiple values from a stored procedure in MySQL?

How can I return multiple values from a stored procedure in MySQL?

MySQL stored function returns only one value. To develop stored programs that return multiple values, you need to use stored procedures with INOUT or OUT parameters. If you are not familiar with INOUT or OUT parameters, check it out the stored procedure’s parameters tutorial for the detailed information.

How can we retrieve multiple result sets from a stored procedure in JDBC?

Execute the above created callable statement using the executeQuery() method this returns a result set object. //Executing the CallableStatement ResultSet rs1 = cstmt. executeQuery(); If this procedure returns more result-set objects move to the next result-set using the cstmt.

How can I get multiple result sets from a stored procedure in PHP?

When a single call to a stored procedure returns more than one result set, you can use the PDOStatement::nextRow method of the PDO API to retrieve the result sets.

Can stored procedure have multiple selects?

MySQL Stored Procedure with Multiple Select statements From Different Tables. But It returns only The first Select, as In result set only contains Sales Column. You will need to request the subsequent resultset using your API.

How can I store multiple values in one variable in MySQL?

The following works as expected when there is a single value stored in a variable. SET @a := “20100630”; SELECT * FROM wordbase WHERE verified = @a; But it does not work when there are multiple values stored in a variable. SET @a := “‘20100630’, ‘20100701’ “; SELECT * FROM wordbase WHERE verified in (@a);

Can we create more than one parameter for stored procedure?

A stored procedure can have many output parameters. In addition, the output parameters can be in any valid data type e.g., integer, date, and varying character. Second, after the SELECT statement, we assigned the number of rows returned by the query( @@ROWCOUNT ) to the @product_count parameter.

How can we get multiple result sets from a stored procedure using Entity Framework?

In order to get multiple result sets working we need to drop to the ObjectContext API by using the IObjectContextAdapter interface. Once we have an ObjectContext then we can use the Translate method to translate the results of our stored procedure into entities that can be tracked and used in EF as normal.

Can you Union two stored procedures?

You can use INSERT EXEC for this. Then use union on the table variable or variables. You can do all of that but think about what you are asking…… You want to pass multiple parameters to the sp and have it produce the same format result set for the different params.

How to retrieve data from stored procedure which has multiple select statements?

Given a stored procedure in SQL Server which has multiple select statements, is there a way to work with those results separately while calling the procedure? In .NET, if I call this proc, I can use a SqlDataReader to move between the two result sets, so I can easily retrieve all people and cars.

Is it possible to process multiple returned result sets in T-SQL?

That can significantly decrease overall code performance. There is no possibility to process multiple returned result sets in T-SQL. That means it will be useful only when called from an application. In T-SQL to reuse code in subqueries, you will have to create another Stored Procedures or functions.

Is it bad to create multiple procedure with multiple result sets?

Unfortunately, that will increase the amount of duplicated code in your codebase. Approach to create one Stored Procedure with multiple result sets fosters the formation of multi-purpose objects. In general, this is a very bad idea and leads to having a low-quality code base, that is extremely hard to be refactored.

How many requests can a stored procedure receive?

An application will send only one request and receive one response. With two Stored Procedures application has to send two requests and will receive two responses. In most cases that will generate more network traffic.