I am new to Myslq, and wonder why there is not field data integrity check, eg, check if second key already exist in primary key table match, range set, etc. and have to write triggers yet triggers do not work if the commands are not from mysql, e.g loading data from comma delimited file?
Wonder if anyone can provide some helps and advices on loading data from comma delimited file yet able to do data integrity checks?
Wonder if anyone can provide some helps and advices on loading data from comma delimited file yet able to do data integrity checks?