I have a table with structure:
id(INT PK), title(VARCHAR), date(DATE)
How do I select all distinct titles with their earliest date?
Apparently, SELECT DISTINCT title, MIN(date) FROM table doesn't work.
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sql
An aggregate function requires a GROUP BY in standard SQL
This is "Get minimum date per title" in plain language
SELECT title, MIN(date) FROM table GROUP BY title
Most RDBMS and the standard require that column is either in the GROUP BY or in a functions (MIN, COUNT etc): MySQL is the notable exception with some extensions that give unpredictable behaviour
To get the titles for dates greater than a week ago today, use this:
SELECT title, MIN(date_key_no) AS intro_date FROM table HAVING MIN(date_key_no)>= TO_NUMBER(TO_CHAR(SysDate, 'YYYYMMDD')) - 7
SELECT MIN(Date) AS Date FROM tbl_Employee /*To get First date Of Employee*/
Source: Stackoverflow.com