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@ -873,7 +873,6 @@
:END: :END:
- DONE Block 1 - DONE Block 1
deck:: 2023t1/database deck:: 2023t1/database
collapsed:: true
- DONE DBMS - DONE DBMS
- Database is :-> a shared collection of logically related data (and a description of this data), designed to meet the information needs of an organization. - Database is :-> a shared collection of logically related data (and a description of this data), designed to meet the information needs of an organization.
id:: 648974ba-3221-48b2-8f9c-2d9275174f48 id:: 648974ba-3221-48b2-8f9c-2d9275174f48
@ -955,10 +954,10 @@
id:: 648974ba-9b7a-4543-b243-e7a78cfc8175 id:: 648974ba-9b7a-4543-b243-e7a78cfc8175
- a ternary relationship is not the same as three binary relationships! - a ternary relationship is not the same as three binary relationships!
- DONE basic concepts associated with Entity-Relationship(ER) model. - DONE basic concepts associated with Entity-Relationship(ER) model.
- LATER Forming sql queries - DONE Forming sql queries
- DONE Review relational algebra https://www.geeksforgeeks.org/introduction-of-relational-algebra-in-dbms/ - DONE Review relational algebra https://www.geeksforgeeks.org/introduction-of-relational-algebra-in-dbms/
- LATER review lab2 - LATER review lab2
- LATER SQL join - DONE SQL join
- DONE Block 2 - DONE Block 2
- DONE EER - DONE EER
- Most useful additional concept of EER model: - Most useful additional concept of EER model:
@ -1024,7 +1023,6 @@
- purpose and importance of SQL. - purpose and importance of SQL.
- SQL is a transform-oriented language with 2 - SQL is a transform-oriented language with 2
id:: 6489c210-8ab6-4a38-979a-01af7618a3a4 id:: 6489c210-8ab6-4a38-979a-01af7618a3a4
collapsed:: true
major components: #flashcard major components: #flashcard
- A DDL for defining database structure. - A DDL for defining database structure.
- Create table - Create table
@ -1047,7 +1045,7 @@
- Join tables together. - Join tables together.
- Use subqueries. - Use subqueries.
- update database and formulate queries using INSERT, UPDATE, and DELETE. - update database and formulate queries using INSERT, UPDATE, and DELETE.
- LATER [#A] Write some SQL!! - DONE [#A] Write some SQL!!
- DONE Block 3 - DONE Block 3
- DONE DB transaction management - DONE DB transaction management
- DONE Deadlock and how it can be resolved. #flashcard - DONE Deadlock and how it can be resolved. #flashcard