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Chain-Sys Interview Questions and Answers
9 Interview questions
A package in PL/SQL is a collection of related procedures, functions, variables, and other PL/SQL constructs.
Packages help organize and encapsulate code for easier maintenance and reuse.
They consist of a specification (header) and a body.
Packages can contain procedures, functions, variables, constants, cursors, and exceptions.
Example: CREATE PACKAGE my_package AS PROCEDURE my_procedure; END my_package;
Example: CRE...
Triggers are database objects that automatically perform an action when a specified event occurs.
Triggers are used to maintain data integrity by enforcing business rules or referential integrity.
They can be used to audit changes to data, such as tracking who made a change and when.
Triggers can also be used to replicate data changes to other tables or systems.
Examples include triggering a notification when a new re...
Delta Lake is an open-source storage layer that brings ACID transactions to Apache Spark and big data workloads.
Delta Lake provides ACID transactions, schema enforcement, and time travel capabilities on top of data lakes.
Data lake is a storage repository that holds a vast amount of raw data in its native format until it is needed.
Delta Lake ensures data reliability and data quality by providing ACID transactions.
D...
Yes, machine learning is a branch of artificial intelligence that focuses on developing algorithms and models that allow computers to learn from and make predictions or decisions based on data.
Machine learning involves training algorithms to recognize patterns in data and make predictions or decisions without being explicitly programmed.
Common machine learning techniques include supervised learning, unsupervised l...
ECC is the traditional ERP system while S4 HANA is the next-generation ERP system with in-memory computing and real-time analytics.
ECC is based on a traditional RDBMS while S4 HANA uses in-memory computing with SAP HANA database
S4 HANA offers real-time analytics and predictive capabilities, while ECC does not
S4 HANA simplifies data models and processes, enabling faster decision-making and innovation
ECC requires se...
SAP is a software company that provides enterprise resource planning solutions to businesses.
SAP stands for Systems, Applications, and Products in Data Processing
It offers a range of software solutions for various business functions like finance, HR, supply chain management, etc.
SAP ERP (Enterprise Resource Planning) system helps businesses streamline their processes and improve efficiency
SAP also offers cloud-bas...
Abstraction program hides implementation details and shows only necessary information.
Abstraction is a way to achieve data hiding and encapsulation
It helps in reducing complexity and increases efficiency
Example: A car dashboard shows only necessary information like speed, fuel level, etc. and hides the implementation details of the engine
Abstraction can be achieved through abstract classes and interfaces
OOPs concepts are the principles of Object-Oriented Programming that help in designing and implementing software systems.
Encapsulation - bundling of data and methods that operate on that data
Inheritance - ability of a class to inherit properties and characteristics from a parent class
Polymorphism - ability of an object to take on many forms
Abstraction - hiding the implementation details and showing only the functi...
PLSQL is a procedural extension of SQL used in Oracle databases for writing stored procedures and functions.
Main components: variables, control structures, cursors, exceptions
Variables: used to store data within PLSQL programs
Control structures: used for conditional logic and looping
Cursors: used to process individual rows returned by SQL queries
Exceptions: used for error handling and custom error messages
Chain-Sys Interview Experiences
20 interviews found
Anonymous
Selected
I applied via Naukri.com and was interviewed before Dec 2023. There was 1 interview round.
(2 Questions)
- Q1. What is the use of triggers?
- Ans.
Triggers are database objects that automatically perform an action when a specified event occurs.
Triggers are used to maintain data integrity by enforcing business rules or referential integrity.
They can be used to audit changes to data, such as tracking who made a change and when.
Triggers can also be used to replicate data changes to other tables or systems.
Examples include triggering a notification when a new record ...
- Q2. What is the package in PLSQL?
- Ans.
A package in PL/SQL is a collection of related procedures, functions, variables, and other PL/SQL constructs.
Packages help organize and encapsulate code for easier maintenance and reuse.
They consist of a specification (header) and a body.
Packages can contain procedures, functions, variables, constants, cursors, and exceptions.
Example: CREATE PACKAGE my_package AS PROCEDURE my_procedure; END my_package;
Example: CREATE P...
Interview Preparation Tips
(2 Questions)
- Q1. Discuss about what u mentioned in resume
- Q2. What is manual testing
- Ans.
Manual testing is the process of manually testing software for defects without the use of automation tools.
Manual testing involves testers executing test cases manually without the use of automation tools.
Testers verify that the software functions correctly and meets requirements.
It is time-consuming and prone to human error.
Examples include exploratory testing, ad-hoc testing, and regression testing.
(1 Question)
- Q1. Discuss about work policy and salary
(1 Question)
- Q1. Discuss with manager
Selected
I appeared for an interview in Feb 2025, where I was asked the following questions.
- Q1. Sql basics questions
- Q2. Java basics questions
GD about IT and Oracle
Interview Preparation Tips
I applied via Approached by Company and was interviewed in Nov 2023. There was 1 interview round.
(2 Questions)
- Q1. Difference between Delta lake and data lake
- Ans.
Delta Lake is an open-source storage layer that brings ACID transactions to Apache Spark and big data workloads.
Delta Lake provides ACID transactions, schema enforcement, and time travel capabilities on top of data lakes.
Data lake is a storage repository that holds a vast amount of raw data in its native format until it is needed.
Delta Lake ensures data reliability and data quality by providing ACID transactions.
Data l...
- Q2. Data warehousing and data modelling
Interview Preparation Tips
Skills evaluated in this interview
I appeared for an interview in Dec 2023.
(2 Questions)
- Q1. Self introduction , about previous project And related questions in previous project
- Q2. Function , DML , function syntax, d/w drop and delete
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Dec 2023. There were 2 interview rounds.
Good test with lots of tricky quetions, maths is needed for this type of exam.
Java
sql
python
dbms
aptitude and reasoning
Interview Preparation Tips
tell me abt my self
carrer gap desc
Selected
I applied via Naukri.com and was interviewed before Jan 2024. There were 3 interview rounds.
(2 Questions)
- Q1. What are the types of clauses used in SQL and their work
- Ans.
Types of clauses in SQL include SELECT, WHERE, GROUP BY, HAVING, ORDER BY, JOIN, etc.
SELECT: Retrieves data from a database
WHERE: Filters records based on specified conditions
GROUP BY: Groups rows that have the same values into summary rows
HAVING: Filters groups based on specified conditions
ORDER BY: Sorts the result set in ascending or descending order
JOIN: Combines rows from two or more tables based on a related colu...
- Q2. What is PLSQL? what are the mail components in PLSQL explain their work with example?
- Ans.
PLSQL is a procedural extension of SQL used in Oracle databases for writing stored procedures and functions.
Main components: variables, control structures, cursors, exceptions
Variables: used to store data within PLSQL programs
Control structures: used for conditional logic and looping
Cursors: used to process individual rows returned by SQL queries
Exceptions: used for error handling and custom error messages
(2 Questions)
- Q1. Practical questions pn PLSQL.
- Q2. Scenario based questions pn both SQL and PLSQL.
(1 Question)
- Q1. General questions like what is your family background, basically they will check confidence and communication.
Interview Preparation Tips
- PLSQL
- SQL
Selected
I appeared for an interview before Jun 2024, where I was asked the following questions.
- Q1. Core Java, Hibernate, Spting Secutity
- Q2. Spring Boot, Collection
Selected
I applied via Naukri.com and was interviewed before Jun 2022. There were 2 interview rounds.
(3 Questions)
- Q1. 1.What is sap. Explain in your own words
- Ans.
SAP is a software company that provides enterprise resource planning solutions to businesses.
SAP stands for Systems, Applications, and Products in Data Processing
It offers a range of software solutions for various business functions like finance, HR, supply chain management, etc.
SAP ERP (Enterprise Resource Planning) system helps businesses streamline their processes and improve efficiency
SAP also offers cloud-based so...
- Q2. Diff between ecc and S4 hana
- Ans.
ECC is the traditional ERP system while S4 HANA is the next-generation ERP system with in-memory computing and real-time analytics.
ECC is based on a traditional RDBMS while S4 HANA uses in-memory computing with SAP HANA database
S4 HANA offers real-time analytics and predictive capabilities, while ECC does not
S4 HANA simplifies data models and processes, enabling faster decision-making and innovation
ECC requires separat...
- Q3. Ecc does not have own database and S4 haba has their own data base and cloud system
Interview Preparation Tips
Skills evaluated in this interview
Selected
I appeared for an interview before Mar 2024, where I was asked the following questions.
- Q1. DDIC , RICEF , BADIS, BAPI, ENHANCEMENTS,
- Q2. Odata, BDC, IAlv
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Chain-Sys Interview FAQs
The duration of Chain-Sys interview process can vary, but typically it takes about less than 2 weeks to complete.
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Chain-Sys Interviews By Designations
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