How to rename a table?

1078

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What is sql not null constraint?

1096

---

What is the difference between nvl function, ifnull function, and isnull function?

1158

---

How to add a column ‘salary’ to a table employee_details?

1057

---

What is the command used to fetch the first 5 characters of a string?

1262

---

What is the difference between local variables and global variables?

1180

---

What are all the different normalization?

1090

---

What is a field in a database?

1104

---

Can a table contain multiple primary key’s?

1157

---

What is the sql case statement?

1057

---

Explain sql data types?

1145

---

What is the largest value that can be stored in a byte data field?

1060

---

What are operators available in sql?

1097

---

How to fetch values from testtable1 that are not in testtable2 without using not keyword?

1285

---

What are user defined functions?

1068

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