![]() It is especially useful in handling organized data comprised of entities (variables) and relations between different entities of the data. It is the standard language for relational database management systems. SQL stands for Structured Query Language. Most modern database management systems like MySQL, Microsoft SQL Server, Oracle, IBM DB2, and Amazon Redshift are based on RDBMS. 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. RDBMS stands for Relational Database Management System. What is RDBMS? How is it different from DBMS? It ensures that our data is consistent, organized, and is easily accessible by serving as an interface between the database and its end-users or application software. DBMS is a system software responsible for the creation, retrieval, updation, and management of the database. What is DBMS?ĭBMS stands for Database Management System. Databases can be vast and complex, and such databases are developed using fixed design and modeling approaches. What is Database?Ī database is an organized collection of data, stored and retrieved digitally from a remote or local computer system. Differentiate between commit and checkpoint. Does PostgreSQL support full text search? How will you take backup of the database in PostgreSQL? How do you perform case-insensitive searches using regular expressions in PostgreSQL? What is the main disadvantage of deleting data from an existing table using the DROP TABLE command? What can you tell about WAL (Write Ahead Logging)? How do you check the rows affected as part of previous transactions? What do you understand by command enable-debug? What do you understand by multi-version concurrency control? Can you explain the architecture of PostgreSQL? What are ACID properties? Is PostgreSQL compliant with ACID? How can you delete a database in PostgreSQL? How can you get a list of all databases in PostgreSQL? What is the capacity of a table in PostgreSQL? What is the importance of the TRUNCATE statement? What are partitioned tables called in PostgreSQL? How can we start, restart and stop the PostgreSQL server? What is the command used for creating a database in PostgreSQL? How will you change the datatype of a column? How to create empty tables with the same structure as another table? ![]() What is Collation? What are the different types of Collation Sensitivity? What are the differences between OLTP and OLAP? What is User-defined function? What are its various types? What is the difference between DELETE and TRUNCATE statements? What is the difference between DROP and TRUNCATE statements? What are the TRUNCATE, DELETE and DROP statements? What are the various forms of Normalization? List the different types of relationships in SQL. What are UNION, MINUS and INTERSECT commands? What are some common clauses used with SELECT query in SQL? What is the difference between Clustered and Non-clustered index? What is an Index? Explain its different types. What is a Join? List its different types. What is the difference between SQL and MySQL?
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |