Schița de curs
Introduction to SQL
- What is SQL?
- Understanding relational databases
- Database engines and tools
Basic Data Retrieval
- SELECT statements
- Filtering with WHERE
- Sorting with ORDER BY
Working with Columns and Rows
- Using DISTINCT
- Column aliases
- Limiting results
Filtering and Comparison
- Comparison operators
- BETWEEN, IN, LIKE
- Logical operators (AND, OR, NOT)
Aggregating and Grouping Data
- COUNT, SUM, AVG, MIN, MAX
- GROUP BY clause
- HAVING clause
Table Joins Basics
- Understanding primary and foreign keys
- INNER JOIN
- LEFT JOIN and RIGHT JOIN
Using Subqueries
- Introduction to subqueries
- Subqueries in SELECT
- Subqueries in WHERE
Summary and Next Steps
Cerințe
- An understanding of basic computer operations
- Familiarity with using spreadsheets or tabular data
- No prior programming experience required
Audience
- Business analysts
- Data entry professionals
- Anyone new to working with databases
Mărturii (5)
Philip a fost foarte amabil, stilul său de a explica conceptele SQL este remarcabil. Mi-a plăcut că ne-a oferit informații și a răspuns la întrebări care nu făceau parte din acest curs.
Stefan
Curs - SQL in SQL Server
Tradus de catre o masina
funcțiile analitice
khusboo dassani - Tech Northwest Skillnet
Curs - SQL Advanced
Tradus de catre o masina
Materialele de antrenament.
Mona Dobre - DB Global Technology
Curs - SQL Advanced level for Analysts
Tradus de catre o masina
Modul învățământului instructorului este foarte informativ și eficient, mai ales pe al doilea zi când subiectele sunt puțin mai avansate.
Aynanie Kiram - Aarki, Inc.
Curs - SQL DATABASE MANAGEMENT AND DESIGN - Bespoke
Tradus de catre o masina
Exerciții interactive
Matthew Viner - Thames Water Utilites Ltd
Curs - Transact SQL Basic
Tradus de catre o masina