Trying to create a trigger, that will print out error upon creating too many rows
But got stuck at PRINT: for some reason i get an error that says that my message is invalid and it expects an identifier after PRINT. What am I doing wrong?
MySQL trigger on update set new value to old value from another column
I have code:
calculate percentage of completeness hierarchically on a tree
I have a table where I store tasks for a Gantt chart. Each task has a start date, a duration and a percentage of completeness.