SQL PLSQL Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

SQL PLSQL Interview Questions

Questions Answers Views Company eMail

what is unique key constraint? : Sql dba

1030

describe mysql connection using mysql binary. : Sql dba

1053

what is a materialized view? : Sql dba

1055

describe transaction-safe table types in mysql : sql dba

998

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

1063

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

1013

what are string data types? : Sql dba

1039

what is blob? : Sql dba

1140

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

965

what is a foreign key ? : Sql dba

1075

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

1083

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

1093

what is data integrity? : Sql dba

1029

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

1634

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

1056

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Un-Answered Questions { SQL PLSQL }

What are the benefits of triggers?

1164

Does mysql_real_escape_string prevent sql injection?

944

What does (*) mean in sql?

945

What is data modelling in sql?

1013

How can a pl sql block be executed?

941

What's the difference between a primary key and a clustered index?

984

What are the types of operators available in sql?

1058

What are the constraints available in sql?

1044

Is sql developer case sensitive?

992

Explain foreign key in sql?

1015

What action do you have to perform before retrieving data from the next result set of a stored procedure ?

2564

What is pl sql collection?

958

Explain exception handling in pl/sql?

1033

Why join is faster than subquery?

1104

Where is sql database stored?

977

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