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I applied via Naukri.com and was interviewed in Sep 2022. There were 4 interview rounds.
I applied via Recruitment Consulltant and was interviewed in Jan 2023. There were 3 interview rounds.
I applied via Naukri.com and was interviewed in May 2021. There were 3 interview rounds.
Procedures and functions are both PL/SQL program units, but they have some key differences.
Procedures do not return a value, while functions do.
Procedures can have OUT parameters to pass values back to the caller, while functions cannot.
Functions can be used in SQL statements, while procedures cannot.
Functions must return a value, while procedures do not necessarily have to.
Procedures are typically used for performing ...
Implicit cursors are automatically created by the Oracle server, while explicit cursors are explicitly declared by the programmer.
Implicit cursors are used for single-row queries, while explicit cursors are used for multi-row queries.
Implicit cursors are automatically opened, fetched, and closed by the Oracle server, while explicit cursors need to be manually opened, fetched, and closed by the programmer.
Implicit curso...
Soft parsing is reusing the existing execution plan while hard parsing is generating a new execution plan.
Soft parsing is faster as it avoids the overhead of generating a new execution plan.
Hard parsing is slower as it involves generating a new execution plan.
Soft parsing occurs when the SQL statement is already in the shared pool.
Hard parsing occurs when the SQL statement is not in the shared pool or needs a new execu...
RDBMS is a type of DBMS that stores data in a structured manner using tables with relationships.
DBMS is a software system that manages data stored in a computer's memory or disk storage.
RDBMS is a type of DBMS that uses a relational model to store data in tables with relationships.
RDBMS supports ACID properties (Atomicity, Consistency, Isolation, Durability) for data integrity.
Examples of RDBMS include Oracle, MySQL, S...
SQL query to find the nth highest salary
Use the ORDER BY clause to sort the salaries in descending order
Use the LIMIT clause to select the nth highest salary
SQL query to delete duplicate records from a table.
Use the DELETE statement with a subquery to identify and delete duplicate records.
The subquery should select the duplicate records based on the criteria for duplication.
Ensure to keep at least one copy of the duplicate records to avoid deleting all instances.
Delete is a DML operation that removes specific rows from a table, while truncate is a DDL operation that removes all rows from a table.
Delete is slower than truncate as it generates undo logs and triggers
Delete can be rolled back, while truncate cannot be rolled back
Delete operation maintains the integrity of the transaction log, while truncate operation does not
Delete operation fires delete triggers, while truncate o...
I applied via Naukri.com and was interviewed in Jun 2022. There were 2 interview rounds.
I applied via Recruitment Consulltant and was interviewed before Apr 2023. There was 1 interview round.
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Design Engineer
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Mechanical Engg. Design
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