ios6 - how to check for an existing data in sqlite database in ios -


hi new sqlite database environment. created table few fields , make 2 fields unique. so, have show alert user while he/she inserts duplicate data table. can tell me "how check existing data before can inserted table in sqlite database"

you have query input data entered user , check whether present or not,

like fire query select count() category categoryname='usertext'

obviously know check data name of table(category in case i.e. in above query) , column name(categoryname).

if count more zero,data exist,you can alert user

else not exist.


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