The AS clause is used to specify an alias for a column (KEY).
Syntax Format
* | SELECT column name (KEY) AS alias
Syntax Sample
Creating a Chinese Alias
* | SELECT remote_addr AS "client IP", request_time AS "request time (unit: second)"
Note:
If the alias contains Chinese or other special characters, double quotation marks should be used.
Counting access requests
* | SELECT COUNT(*) AS PV