postgres greatest

相關問題 & 資訊整理

postgres greatest

2010年11月5日 — 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 ... ,This tutorial shows you how to use the PostgreSQL MAX function to get the maximum ... The GREATEST function returns the greatest value from a list of values. ,2019年12月30日 — Examples. The query will return 5, as it is the largest of the values: postgres=# select greatest(1 ... ,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 values,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 ... ,2003年7月2日 — Greg Stark wrote: > MAX and MIN are single-parameter aggregate functions. LEAST and GREATEST are > two-parameter (though in postgres ... ,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 ... ,Although COALESCE , GREATEST , and LEAST are syntactically similar to functions, they are not ordinary functions, and thus cannot be used with explicit ... ,Cc: pgsql-sql <pgsql-sql(at)postgresql(dot)org>. Subject: Re: DIfference between max() and greatest() ? Date: 2008-09-12 16:47:39. Message-ID ... ,請注意,GREATEST 和LEAST 並不在SQL 標準中,但卻是一個常見的延伸功能。如果任何參數為NULL,則其他一些資料庫會使其回傳NULL,而不是僅在所有參數 ...

相關軟體 PostgreSQL (64-bit) 資訊

PostgreSQL (64-bit)
PostgreSQL 64 位是一個功能強大的開源對象關係數據庫系統。它擁有超過 15 年的積極開發和經過驗證的架構,在可靠性,數據完整性和正確性方面贏得了良好聲譽。它運行在所有主要的操作系統上,包括 Linux,UNIX(AIX,BSD,HP-UX,SGI IRIX,Mac OS X,Solaris,Tru64)和 Windows。&nbsp; PostgreSQL 64 位是一個功能強大的對象... PostgreSQL (64-bit) 軟體介紹

postgres greatest 相關參考資料
greatest and least - oldies but goodies - Postgres OnLine ...

2010年11月5日 — 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&nbsp;...

https://www.postgresonline.com

PostgreSQL MAX Function: Get Maximum Value in a Set

This tutorial shows you how to use the PostgreSQL MAX function to get the maximum ... The GREATEST function returns the greatest value from a list of values.

https://www.postgresqltutorial

Examples of using GREATEST and LEAST functions in ...

2019年12月30日 — Examples. The query will return 5, as it is the largest of the values: postgres=# select greatest(1&nbsp;...

https://www.enterprisedb.com

Documentation: 9.5: Conditional Expressions - PostgreSQL

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...

https://www.postgresql.org

Documentation: 8.4: Conditional Expressions - PostgreSQL

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&nbsp;...

https://www.postgresql.org

Re: LEAST and GREATEST functions? - PostgreSQL

2003年7月2日 — Greg Stark wrote: &gt; MAX and MIN are single-parameter aggregate functions. LEAST and GREATEST are &gt; two-parameter (though in postgres&nbsp;...

https://www.postgresql.org

Documentation: 11: 9.17. Conditional Expressions - PostgreSQL

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&nbsp;...

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&nbsp;...

https://www.postgresql.org

Re: DIfference between max() and greatest() - PostgreSQL

Cc: pgsql-sql &lt;pgsql-sql(at)postgresql(dot)org&gt;. Subject: Re: DIfference between max() and greatest() ? Date: 2008-09-12 16:47:39. Message-ID&nbsp;...

https://www.postgresql.org

9.18. 條件表示式- PostgreSQL 正體中文使用手冊

請注意,GREATEST 和LEAST 並不在SQL 標準中,但卻是一個常見的延伸功能。如果任何參數為NULL,則其他一些資料庫會使其回傳NULL,而不是僅在所有參數&nbsp;...

https://docs.postgresql.tw