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第 13 章 SQL Statement Syntax

Structured Query Language

目錄

13.1. DISTINCT
13.2. group by
13.3. HAVING
13.4. REGEXP
13.5. IN / NOT IN
13.6. ALL / Any
13.7. exists, not exists
13.8. UNION
13.8.1. UNION ALL
13.9. OUTFILE/LOAD DATA INFILE
13.9.1. Export data to CSV from MySQL
13.9.2. Import data from CSV file.
13.10. MySQL 專有命令
13.10.1. SQL_NO_CACHE
13.10.2. SIGNAL Syntax
13.11. SQL 92

13.1. DISTINCT

SELECT DISTINCT user.name FROM user

SELECT DISTINCT user.name FROM user