Database management systems (DBMS)
What is a database management system? ️ A program controlling the structure of a database and
access to the data; creates, processes, and administers the database.
What are some advantages of a DBMS? ️ - Reduced data redundancy - Improved data integrit...
What is a database management system? ✔️ A program controlling the structure of a database and
access to the data; creates, processes, and administers the database.
What are some advantages of a DBMS? ✔️ - Reduced data redundancy
- Improved data integrity
- More program independence
- Increased user productivity
- Increased security
What is DBMS used for? ✔️ To create tables and relationships in databases.
What do applications use DBMS for? ✔️ To read, insert, modify, and delete data.
What is a structured query language (SQL)? ✔️ SQL is an international standard language for
manipulating relational databases.
What do SQL queries consist of? ✔️ An action, database table name, set of parameters.
What are SQL keywords? ✔️ They issue instructions - create, delete, insert, etc.
What are boolean operators? ✔️ AND, OR, NOT for searching.
What are global updates? ✔️ Based on some criteria.
What are joining tables? ✔️ Creating relationships.
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