Answer Posted / pranee

four types of triggers generally
row level triggers
statement level triggers
after triggers
before triggers

Which one is better subquery or joins?

775

---

Can %notfound return null after a fetch?

756

---

What is acid property in a database?

763

---

how to shut down the server with 'mysqladmin'? : Sql dba

737

---

Can we use delete in merge statement?

734

---

---

Is it possible to include an insert statement on the same table to which the trigger is assigned?

734

---

How does a covering index work?

693

---

Which certification is best for sql?

725

---

What is sequence in sql?

720

---

What are aggregate and scalar functions?

725

---

How many postgresql users are there, worldwide?

779

---

What does the acronym acid stand for in database management?

775

---

how to present a past time in hours, minutes and seconds? : Sql dba

739

---

How many times can we commit in a loop?

740

---

How do you clear the screen in sql?

782

---