Mysql function return table row

What is stored function in MySQL? How to create a table in MySQL? You would have to use a stored procedure for that.

However, there is a not-so-pretty workaround: create a temporary table within the function body to store the values returned , and then access this table outside the function. I am trying to return a value from a table. Don’t be misguided by the posting title. ByLogin() aut ON toto.

Thanks for your helps. MySQL function return value from row. After that, I would like to store this table in a view, in order to use it in outer join with other tables. This function is part of the SQL standar and it can be used with most relational database management systems.

It is a type of window function. The alias is required. This can be used to assign a sequence number for rows. To understan create a table with the help of CREATE pcommand −. ROW _NUMBER() function using various techniques. I have taken the liberty of writing a rownum() function , that is just as ba but at least it will keep your code clean.

If it does not find any matching row , it returns 0. Returns the AUTO_INCREMENT id of the last row that has been inserted or updated in a table : NULLIF: Compares two expressions and returns NULL if they are equal. You cannot return a et or a cursor to another stored procedure or query. But only to the client. A possible workaround is to create a prepared statement which is considered as a return value.

Prepared statements, like user variables, exist at a session level,. Here it returns the set of data as an array. To get the value from the array we have to use array offset staring from 0. Each call to this mysql _fetch_ row function returns the next record. Procedures and views on the other hand do not return anything, but can display multiple rows.

Functions by definition return a single value. An option could be to have a function empty a work table and insert ids into it and return the number of ids found. After calling the function , you can then do a SELECT on the work table to work with the ids. At this point Request will return the number of Table Records in Table and not Table as expected!

As soon as its turn comes in it will be executed my MySQL. If I run the same statement in Navicat or from my application (via the.NET connector), it returns the correct row count. I have read about JSON objects and the JSON object type. I do not necessarily want to store a JSON object. Serialization per se it not my question.

JSON Objects, normal database rows. SHOW VARIABLES to this issue so that we can compare these to the settings i was using in my test?