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TRST01 SQL Developer Interview Questions and Answers
TRST01 SQL Developer Interview Experiences
1 interview found
Rakesh Yadav
Selected
I applied via Naukri.com and was interviewed in Aug 2024. There was 1 interview round.
(3 Questions)
What is difference between stored procedure and Function
- Q1. What is normalization
- Ans.
Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
Normalization involves breaking down data into smaller, more manageable tables
It helps in reducing data redundancy by storing data in a structured manner
Normalization ensures data integrity by minimizing data anomalies
There are different normal forms such as 1NF, 2NF, 3NF, BCNF, and 4NF
- Q2. What are views and why it is different from Stored procedure
- Ans.
Views are virtual tables that display data from one or more tables, while stored procedures are a set of SQL statements that perform a specific task.
Views are used to simplify complex queries by storing them as a virtual table.
Views do not store data themselves, but rather display data from underlying tables.
Stored procedures are precompiled sets of SQL statements that can be executed with parameters.
Stored procedures ...
- Q3. Get the highest salary by grouping department by using two methods of query
- Ans.
To get the highest salary by grouping department, use SQL queries with GROUP BY and ORDER BY clauses.
Use GROUP BY clause to group the data by department.
Use MAX() function to find the highest salary within each department.
Use ORDER BY clause to sort the results in descending order of salary.
Example: SELECT department, MAX(salary) AS highest_salary FROM employees GROUP BY department ORDER BY highest_salary DESC;
Interview Preparation Tips
- SQL
- joins
- Stored Procedures
- cte
Skills evaluated in this interview
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Anonymous
(2 Questions)
- Q1. Explain sql commands
- Q2. Explain normalization in sql
Selected
I applied via Company Website and was interviewed in Nov 2024. There were 2 interview rounds.
Sql
ddl
dml
tcl
dql
joins
view
date commit
Date commit
joins
view
sum
max
avg
count
min
(1 Question)
- Q1. What is sql , index , stored proc , triggers
I applied via Naukri.com and was interviewed in Oct 2024. There was 1 interview round.
(2 Questions)
- Q1. Joins in sql server
- Q2. Set operator in sql
Interview Preparation Tips
(2 Questions)
- Q1. Explain about SSIS Architecture
- Ans.
SSIS Architecture is a platform for data integration and workflow applications.
SSIS stands for SQL Server Integration Services
It includes a data flow engine, control flow engine, and event handling
SSIS packages can be created using SQL Server Data Tools (SSDT)
SSIS packages can be scheduled and executed using SQL Server Agent
- Q2. How to implement transactions in ssis
- Ans.
Transactions in SSIS can be implemented using the TransactionOption property in Control Flow tasks.
Set the TransactionOption property to Required on the Control Flow tasks that need to be included in the transaction.
Use the TransactionOption property to specify the level of transaction support needed for each task.
Transactions can be managed using the Distributed Transaction Coordinator (DTC) service.
Interview Preparation Tips
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in May 2024. There was 1 interview round.
(2 Questions)
- Q1. How to insert multiple values in one go
- Ans.
Use the INSERT INTO statement with multiple value sets separated by commas
Use the INSERT INTO statement followed by the table name
List the column names in parentheses after the table name
Use the VALUES keyword followed by multiple value sets in parentheses, separated by commas
Example: INSERT INTO table_name (column1, column2) VALUES (value1, value2), (value3, value4)
- Q2. Update query using joins
- Ans.
Update query using joins in SQL
Use UPDATE statement with JOIN clause to update data in multiple tables
Specify the tables to be updated and joined using ON clause
Set the columns to be updated in SET clause
Interview Preparation Tips
Skills evaluated in this interview
Selected
I applied via Naukri.com and was interviewed in Apr 2024. There were 3 interview rounds.
(1 Question)
- Q1. Technical discussion
(1 Question)
- Q1. Manager round and technical discussion
(1 Question)
- Q1. Selection processs
(2 Questions)
- Q1. Write a query to display the highest salary
- Ans.
Query to display the highest salary in a table
Use the SELECT statement to retrieve data
Use the MAX() function to find the highest salary
Specify the column name for salary in the query
- Q2. Stored proceduers,functions,cursors triggers,
Interview Preparation Tips
Skills evaluated in this interview
(2 Questions)
- Q1. Types of Indexes
- Ans.
Types of indexes include clustered, non-clustered, unique, composite, and filtered indexes.
Clustered indexes physically reorder the data in the table based on the index key.
Non-clustered indexes create a separate structure for the index, pointing back to the original table data.
Unique indexes ensure that no two rows have the same values in the indexed columns.
Composite indexes are created on multiple columns to improve...
- Q2. Sceanrio based question
(2 Questions)
- Q1. Salary discussion
- Q2. Joining date and last working date
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