"Aim for your dreams, but don't lose yourself along the way" #innerandouterjoin Q: What are the 4 types of joins in SQL? A: Four types of joins: left, right, inner, and outer.
"Aim for your dreams, but don't lose yourself along the way" #normalization Q:What is the advantage of 3NF? A: First, the amount of data duplication is reduced, resulting in a smaller database. The second benefit is data integrity.
"Aim for your dreams, but don't lose yourself along the way" #functiondandjoin Q: Can we join table and function in SQL? A:JOIN operations in SQL Server are used to join two or more tables. JOIN operations cannot be used to join a table with the output of a table valued function.
"Aim for your dreams, but don't lose yourself along the way" #relationalmodel Q: What is Relational Model? A: Relational Model represents how data is stored in Relational Databases. #dqlSELECT Q: What is Doctrine query? A: is an Object Query Language created for helping users.
"Aim for your dreams, but don't lose yourself along the way" #eerd Q: What are EER diagrams are used for? A: EER Diagram, also abbreviated as Enhanced Entity-relationship diagram, helps us create and maintain detailed databases through high-level models and tools.
"Aim for your dreams, but don't lose yourself along the way" #erd Q: What is the meaning of ERD? A: Entity Relationship Diagram #basicsql Q: What are the different subsets of SQL? A: DDL, DML, DCL
"Aim for your dreams, but don't lose yourself along the way" #datamodels Q: What is a Table? A: A table consists of data stored in rows and columns. #basicsql Q: What is the Primary key? A: The PRIMARY KEY constraint uniquely identifies each record in a table.
"Aim for your dreams, but don't lose yourself along the way" #databaseconcepts Q: What is Database? A: Database is a shared, integrated computer structure that stores a collection of Metadata and End-user data #oracleAPEX Q: What is Oracle APEX used for? A: Making apps and games
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