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SQL PLSQL Interview Questions
Questions Answers Views Company eMail

what is unique key constraint? : Sql dba

 799

describe mysql connection using mysql binary. : Sql dba

 796

what is a materialized view? : Sql dba

 797

describe transaction-safe table types in mysql : sql dba

 739

how to add a new column to an existing table in mysql? : Sql dba

 824

what is the difference between union and union all? : Sql dba

 771

what are string data types? : Sql dba

 751

what is blob? : Sql dba

 787

write an sql query to get third maximum salary of an employee from a table named employee_table. : Sql dba

 766

what is a foreign key ? : Sql dba

 835

explain the difference between delete , truncate and drop commands? : Sql dba

 796

what is a relationship and what are they? : Sql dba

 792

what is data integrity? : Sql dba

 820

what is the command used to fetch first 5 characters of the string? : Sql dba

 1409

how to drop an existing view in mysql? : Sql dba

 833

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Un-Answered Questions { SQL PLSQL }

What are the different dml commands in sql?

813

What are analytical functions in sql?

777

Which one is better sql or oracle?

736

What is varchar sql?

850

How do you run a query?

807

How to rename a table?

801

What is a heap in sql?

765

What is benefit of creating memory optimized table?

745

Write the order of precedence for validation of a column in a table? I. Done using database triggers. Ii. Done using integarity constraints

881

How do you pronounce sql?

773

i have 2 table table one 4 columns respective values a1 7,a2 6,a3 8 ,a4 12 & table two 4 colums respective values a1 7,a2 6,a3 8,a4 15.if table one & table two 3 colums same then 4th column values 1)Qes diff >5 then print 5 * diff value 2)Que diff <5 print 5

3673

What are the benefits of pl/sql packages?

804

What is sqlite format?

868

What is sql*loader and what is it used for?

791

how to run 'mysql' commands from a batch file? : Sql dba

835

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