If you want to loop throuh the mysql result set twice then use below way. $result = mysql_query(“SELECT * FROM my_table”);while($row = mysql_fetch_assoc($result)) {// inside the loop} The problem is, if you want to loop through the same result set again, you will get an error because the internal pointer is currently at the end […]
1. Using MyISAM rather than InnoDB MySQL has a number of database engines, but you’re most likely to encounter MyISAM and InnoDB. MyISAM is used by default. However, unless you’re creating a very simple or experimental database, it’s almost certainly the wrong choice! MyISAM doesn’t support foreign key constraints or transactions, which are essential for […]
You can find duplicate rows in the mysql table, just use below select query, to find duplicate rows in Oracle, Sql, Mysql, DB2. SELECT columnName, COUNT(*) as countFROM selectedTableGROUP BY columnNameHAVING COUNT(*) > 1; You came from below query:how to find duplicate rows in sql server 2008how to find duplicate rows in sql and deletehow […]
