Ques:- Describe the use of PL/SQL tables
Ques:- What are Ranking Functions?
Asked In :-
TruKKer Technologies, Weill Cornell Medical College in Qatar, telstra, lera technologies,
Ques:- Tow tables is there employee, projects .(many to many) one employee has different projects and oneproject has different employees . how we can achive the datafrom both
Ques:- What happens if a table has one column defined as TIMESTAMP?
Asked In :-
FemtoSoft, syncfusion,
Ques:- How we can use more then one primary key in Single Table
Asked In :-
Ques:- What is the query to find nth highest salary?What is the use of cursors?
Ques:- Explain data type TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
Asked In :-
Ques:- What are the wildcards used for pattern matching.
Asked In :-
FABHOST WEB SOLUTIONS, iqmetrix,
Ques:- Can any one tell me how to increase the performance of a sql query ie what are the performance tips in creating or writing a sql query !!?
Asked In :-
relisource,
Ques:- How can we Get the Updated Rows? ie, There is 100s of Rows iupdated the Rows who have salary 5000. then i want to selectthe Updated Rows. How can we achieve it?
Asked In :-
Propel Technology, tangentia,
Ques:- Which function is used to find the largest integer less than or equal to a specific value?
Asked In :-
t-systems, crowdstrike,
Ques:- How we can count duplicate entery in particular table against Primary Key ? What are constraints?
Asked In :-
Ulearn,
Ques:- Can we create a clustered index on composite primary key.
Asked In :-
Fastlab, Ceat Tyre Ltd, guardium, an ibm company, brainstorm force, euronet software solutions,
Ques:- How can we add a column to a table without altering the same?
Ques:- What command is used to create a table by copying the structure of another table including constraints ?
Ques:- What are the difference between clustered and a non-clustered index?
Asked In :-
Gritsa Technologies, Mathematica, catalystone solutions, eventum it solutions, tangentia, crest infotech,
The MySQL category on takluu.com is tailored for candidates aiming to master the fundamentals and advanced concepts of relational databases. Whether you’re a backend developer, data analyst, DBA, or full-stack engineer, understanding MySQL is essential for working with structured data in real-world applications.
MySQL is one of the most widely used open-source relational database management systems (RDBMS). It is trusted by small startups to large-scale enterprises due to its reliability, scalability, and performance. Interviewers often assess candidates on their ability to write efficient SQL queries, understand relational concepts, normalize data, and manage indexing and performance tuning.
In this section, you’ll find carefully curated interview questions covering a range of topics, including:
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Basic SQL queries (SELECT, INSERT, UPDATE, DELETE)
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Joins (INNER, LEFT, RIGHT, FULL)
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Grouping and aggregate functions (GROUP BY, COUNT, SUM, AVG)
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Subqueries and nested queries
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Indexing and performance optimization
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Transactions, ACID properties, and locks
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Stored procedures, triggers, and views
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User management and privileges
This category not only prepares you for syntax-based questions but also for scenario-based problems, such as query optimization, handling large datasets, designing database schemas, and managing concurrency issues.
Our goal is to help you answer MySQL questions with clarity and confidence, demonstrating both your theoretical understanding and practical experience. With real-life examples and mock interview challenges, you’ll be well-prepared to face technical rounds at companies ranging from startups to MNCs.
Use this category as your go-to resource to strengthen your MySQL knowledge, whether you’re preparing for a developer, analyst, or database administrator role.
