100 degrees TM is similar to this: declare done int default false; declare mycursor cursor for select * from ; declare continue HANDLER for not found set done = true; -- , not found , done true. but this time it brings a pit,...
has not written a stored procedure before. I encountered this problem for the first time and didn t understand it. I hope some great god can give me some advice! < span class= "emoji emoji-pray " > The sql statement is as follows : CREATE DEF...
* * Environment: node.js express mysql** question: when mysql inserts article data, there is an error storing the details of the article, as follows: You have an error in your SQL syntax; Check the manual that corresponds to your MySQL server versi...
Today, we encountered a strange problem. For the same batch insertion, one can be inserted successfully in batch, but the other cannot be inserted successfully. Please take a look at it. the following is pseudo code -- A (SQL)( SQL ) CREATE PROCEDURE...
Application scenario: the background management system assigns visible menu permissions to the created users. For example, if user An is assigned 10 menus, then the user can see the 10 menus in the menu bar after logging in. Now the menu is up to 3 leve...