如何避免sql LIke查询中的重复值

I implement my project in Yii. To display search values using sql LIKE query. and its also displaying. but i fetching values from other table using primary key. so that i assigned values to id only. and its also displaying correct. but there is duplicate values displaying ie. my table containing from id 1 to 23. if i select the first values. values are displaying like 1,10,11,12,13,21 like wise then if i select 2 values are displaying like 2,20,21,22 like wise values are displaying.I implement my project in Yii. To display searc