CDS Infra Projects Software Engineer Interview Questions and Answers

Connecting to a database has multiple options depending on the type of database and programming language used.

• For SQL databases, options include using JDBC for Java, ODBC for C++, and ADO.NET for C#.

• For NoSQL databases, options include using MongoDB's driver for Python or Node.js.

• ORMs like Hibernate and Entity Framework can also be used to abstract away the database connection details.

• Connection strings are used to spe...read more

Compile time polymorphism is achieved through function overloading and templates.

• Function overloading allows multiple functions with the same name but different parameters.

• Templates allow generic programming by defining functions or classes that can work with different data types.

• Examples of function overloading include cout<< for different data types and sqrt() for float and double.

• Examples of templates include vector

Different types of read and find include sequential, binary, indexed, and hash.

• Sequential read: reads data in order from start to end of file

• Binary read: reads data in chunks of fixed size

• Indexed read: uses an index to locate data

• Hash read: uses a hash function to locate data

• Sequential find: searches for data in order from start to end of file

• Binary find: searches for data in chunks of fixed size

• Indexed find: uses an i...read more

Histogram is a graphical representation of data distribution.

• It consists of bars that represent the frequency of data within certain intervals.

• The x-axis represents the intervals and the y-axis represents the frequency.

• It is commonly used in statistics to analyze data distribution.

• Example: A histogram of student grades in a class can show the distribution of grades.

• Example: A histogram of the heights of people in a pop

To get data from Adabas, use Adabas API or Adabas SQL Gateway.

• Adabas API provides a set of functions to access Adabas database directly.

• Adabas SQL Gateway allows accessing Adabas data using SQL statements.

• Adabas can also be accessed through middleware like JDBC or ODBC drivers.

• Example: Using Adabas API, call the function 'ADAREAD' to read data from a file.

• Example: Using Adabas SQL Gateway, execute a SELECT statement to

Get transaction is a method to retrieve data from a database or blockchain.

• Get transaction is used to retrieve a specific transaction from a database or blockchain.

• It is commonly used in blockchain technology to retrieve information about a specific transaction on the blockchain.

• In databases, it is used to retrieve data from a specific row or set of rows based on certain criteria.

• Examples of databases that use Get tran