UsefulLinks
Computer Science
Databases
PostgreSQL Database
1. Introduction to PostgreSQL
2. Installation and Basic Management
3. SQL Fundamentals in PostgreSQL
4. Data Types
5. Advanced Querying
6. Indexes and Performance
7. Transactions and Concurrency Control
8. Procedural Programming and Functions
9. Security and User Management
10. Database Administration
11. Backup, Recovery, and Replication
12. Advanced PostgreSQL Features
5.
Advanced Querying
5.1.
Subqueries
5.1.1.
Scalar Subqueries
5.1.2.
Multi-row Subqueries
5.1.3.
Correlated Subqueries
5.1.4.
Subqueries in SELECT
5.1.5.
Subqueries in FROM
5.1.6.
Subqueries in WHERE
5.1.7.
Subqueries in HAVING
5.2.
Common Table Expressions
5.2.1.
WITH Clause
5.2.2.
Recursive CTEs
5.2.3.
CTEs vs Subqueries
5.3.
Window Functions
5.3.1.
OVER Clause
5.3.2.
PARTITION BY
5.3.3.
ORDER BY in Window Functions
5.3.4.
Frame Clause
5.3.4.1.
ROWS Frame
5.3.4.2.
RANGE Frame
5.3.5.
Ranking Functions
5.3.5.1.
ROW_NUMBER
5.3.5.2.
RANK
5.3.5.3.
DENSE_RANK
5.3.6.
Aggregate Window Functions
5.3.7.
Value Functions
5.3.7.1.
LAG
5.3.7.2.
LEAD
5.3.7.3.
FIRST_VALUE
5.3.7.4.
LAST_VALUE
5.3.8.
Moving Averages
5.3.9.
Running Totals
5.4.
Advanced Aggregate Functions
5.4.1.
Standard Aggregate Functions
5.4.2.
CUBE
5.4.3.
ROLLUP
5.4.4.
GROUPING SETS
5.5.
Full-Text Search
5.5.1.
tsvector Type
5.5.2.
tsquery Type
5.5.3.
Creating Full-Text Indexes
5.5.4.
Search Functions
5.5.4.1.
to_tsvector
5.5.4.2.
to_tsquery
5.5.4.3.
plainto_tsquery
5.5.4.4.
ts_rank
5.5.5.
Dictionaries and Configurations
5.5.6.
Highlighting Results
5.5.7.
Ranking Results
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4. Data Types
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6. Indexes and Performance