如何从 SQL Server 中的长字符串中提取日期

Question

I a long string like below in my column and I need to extract only the date ( 2021-07-05 ) from it.

Could anyone please help?

Name - Koteswararao vp Department - Prod Location - Hyderabad Domain - ND Job Title - Technical-ABAP Date of Hire - 2021-07-05 Vendor ID - v2345 Candidate ID - Associate ID - 3334 Name - Hardware Allocation

Answer 1

We can use PATINDEX with SUBSTRING here:

SELECT
    col,
    SUBSTRING(col,
              PATINDEX('%[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]%', col),
              10) AS date
FROM yourTable;

Demo

The call to PATINDEX above finds the starting position of the date, while SUBSTRING takes 10 characters from that position.