What are triggers and its types?
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what is the difference between trigger and constraint?
Can we use update in sql function?
What is error ora-12154: tns:could not resolve the connect identifier specified?
Does a join table need a primary key?
differentiate between float and double. : Sql dba
What are sql constraints?
Can variables be used in sql statements?
What is the diff between Truncate table / delete <table name> purge
mail-id table contains two columns(email_id,userid) it contains different types of mail-ids,and no of users. here username length is differ na,(ex- tamil@yahoo.com,joshua@hotmail.com like) now i want to fetch the email-ids only starting from '@' (ex-@gmail.com,@yahoo.com,@hotmail.com
what are all types of user defined functions? : Sql dba
what is a sub query?how will you calculate working days in a month using sub query?
How do I view a sql database?
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