postgresql greatest function
9.17. The GREATEST and LEAST functions select the largest or smallest value from a list of any number of expressions. The expressions must all be convertible to a common data type, which will be the type of the result (see Section 10.5 for details). NULL ,The COALESCE function returns the first of its arguments that is not null. ... The GREATEST and LEAST functions select the largest or smallest value from a list of ...
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 postgresql greatest function 相關參考資料
PostgreSQL MAX Function - PostgreSQL Tutorial
https://www.postgresqltutorial Documentation: 9.5: Conditional Expressions - PostgreSQL
9.17. The GREATEST and LEAST functions select the largest or smallest value from a list of any number of expressions. The expressions must all be convertible to a common data type, which will be the t... https://www.postgresql.org Documentation: 8.4: Conditional Expressions - PostgreSQL
The COALESCE function returns the first of its arguments that is not null. ... The GREATEST and LEAST functions select the largest or smallest value from a list of ... https://www.postgresql.org Re: LEAST and GREATEST functions? - PostgreSQL
Greg Stark wrote: > MAX and MIN are single-parameter aggregate functions. LEAST and GREATEST are > two-parameter (though in postgres ... https://www.postgresql.org Documentation: 12: 9.17. Conditional Expressions - PostgreSQL
Although COALESCE , GREATEST , and LEAST are syntactically similar to functions, they are not ordinary functions, and thus cannot be used with explicit ... https://www.postgresql.org Documentation: 10: 9.17. Conditional Expressions - PostgreSQL
The COALESCE function returns the first of its arguments that is not null. ... The GREATEST and LEAST functions select the largest or smallest value from a list of ... https://www.postgresql.org Documentation: 8.1: Conditional Expressions - PostgreSQL
The COALESCE function returns the first of its arguments that is not null. ... The GREATEST and LEAST functions select the largest or smallest value from a list of ... https://www.postgresql.org Using function least and greatest on timestamp in PostgreSQL ...
select * from some_table where plc_time = greatest(timestamp '2013-07-15 14:55:00', timestamp '2013-03-01 17:43:00');. https://stackoverflow.com greatest and least - oldies but goodies - Postgres OnLine ...
Here is where the least and greatest functions come in handy. PostgreSQL has had these functions for as far back as I can remember and is not ... http://www.postgresonline.com |