sql interview questions for 1 year experience

SQL Interview Questions
  • What is the difference between SQL and MySQL?
  • What are the different subsets of SQL?
  • What do you mean by DBMS? …
  • What do you mean by table and field in SQL?
  • What are joins in SQL?
  • What is the difference between CHAR and VARCHAR2 datatype in SQL?
  • What is the Primary key?
  • What are Constraints?

Top 65 SQL Interview Questions and Answers | SQL Interview Preparation | SQL Training | Edureka

Top 10 Frequently Asked SQL Server Interview Questions

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SQL Server Interview Questions For 2-3 Years Experienced

The clauses of the select are processed in the following sequence

  • FROM clause
  • WHERE clause
  • GROUP BY clause
  • HAVING clause
  • SELECT clause
  • ORDER BY clause
  • TOP clause
  • Can we write a distributed query and get some data that is located on another server and on Oracle Database?

    SQL Server can be lined to any server provided it has an OLE-DB provider from Microsoft to allow a link.

    For E.g. Oracle has an OLE-DB provider for oracle that Microsoft provides to add it as a linked server to the SQL Server group.

    What is RDBMS? How is it different from DBMS?

    RDBMS stands for Relational Database Management System. The key difference here, compared to DBMS, is that RDBMS stores data in the form of a collection of tables, and relations can be defined between the common fields of these tables. Most modern database management systems like MySQL, Microsoft SQL Server, Oracle, IBM DB2, and Amazon Redshift are based on RDBMS.

    FAQ

    What are good SQL interview questions?

    SQL Interview Questions for Experienced Professionals
    • Q1. What is normalization? What are the different normalizations?
    • Q2. What is denormalization?
    • Q3. What is collation? What are the different types of collation sensitivity?
    • Q4. What do you understand about CASE statements?
    • Q5. What are some common SQL commands?

    What are the 5 basic SQL commands?

    Some of The Most Important SQL Commands
    • SELECT – extracts data from a database.
    • UPDATE – updates data in a database.
    • DELETE – deletes data from a database.
    • INSERT INTO – inserts new data into a database.
    • CREATE DATABASE – creates a new database.
    • ALTER DATABASE – modifies a database.
    • CREATE TABLE – creates a new table.

    How do I prepare for SQL interview?

    If you want to perform well at the SQL job interview, these are the concepts you need to know:
    1. Data Definition Language (DDL) keywords.
    2. Data Manipulation Language (DML) keywords.
    3. Data Control Language (DCL) keywords.
    4. Transaction Control Language (TCL) keywords.
    5. SQL constraints.
    6. JOINs.
    7. indexes.
    8. transactions.

    What is your experience in SQL?

    Here’s a good example answer:

    I feel there can be a real sense of achievement working in SQL, from solving broken queries to designing new ones! There is so much to learn working with SQL, it’s an exciting and growing coding language and I want to expand my query design abilities through this role.”

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