Find Records Containing Percentage Sign
The “\%” and “\_” sequences are used to search for literal instances of “%” and “_” in pattern-matching contexts where they would otherwise be interpreted as wildcard characters. If you use “\%” or “\_” outside of pattern-matching contexts, they evaluate to the strings “\%” and “\_”, not to “%” and “_”. So if you want [...]
MySQL Find Duplicate Records
If you are inserting the data into the table, you could either check for dupes before inserting, or make a unique key on the fields that comprise a unique record for your application, which will prevent duplicates from entering the table in the first place. This example is for cases where the data is already [...]