postgresql case when else if
SQL 中的CASE 表示式是一種通用的條件表示式,類似於其他程序語言中的if / else 語句:. CASE WHEN condition THEN result. [WHEN ...] [ELSE result]. END. ,2019年4月3日 — Common conditional expressions include if-else blocks and switch cases. You can formulate conditional expressions in PostgreSQL using ... ,CASE. The SQL CASE expression is a generic conditional expression, similar to if/else statements in other languages: CASE WHEN condition THEN result ... ,CASE. The SQL CASE expression is a generic conditional expression, similar to if/else statements in other languages: CASE WHEN condition THEN result ... ,9.16.1. CASE. The SQL CASE expression is a generic conditional expression, similar to if/else statements in other programming languages: CASE ... ,CASE. The SQL CASE expression is a generic conditional expression, similar to if/else statements in other programming languages: CASE WHEN condition ... ,CASE. The SQL CASE expression is a generic conditional expression, similar to if/else statements in other programming languages: CASE WHEN condition ... ,2) Simple PostgreSQL CASE expression in a WHEN clause, the CASE returns the corresponding result in the THEN clause. If CASE does not find any matches, it returns the else_result in that follows the ELSE , or NULL value if the ELSE is not available. ,SELECT *, CASE WHEN (pvc IS NULL OR pvc = '') AND (datepose < 1980) ... OR datepose = 0) THEN '03' ELSE '00' END AS modifiedpvc FROM my_table; gid ... ,本節描述在PostgreSQL 裡可以用的SQL兼容的條件資料表達式。 ... SQL CASE 資料表達式是一種通用的條件資料表達式,類似於其它語言中的if/else 語句。 ... 如果沒有WHEN condition 為真,那麼 case 資料表達式的結果就是在ELSE 子句裡的值 ...
相關軟體 PostgreSQL (64-bit) 資訊 | |
---|---|
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
postgresql case when else if 相關參考資料
9.18. 條件表示式- PostgreSQL 正體中文使用手冊
SQL 中的CASE 表示式是一種通用的條件表示式,類似於其他程序語言中的if / else 語句:. CASE WHEN condition THEN result. [WHEN ...] [ELSE result]. END. https://docs.postgresql.tw CASE Statements in PostgreSQL - DataCamp
2019年4月3日 — Common conditional expressions include if-else blocks and switch cases. You can formulate conditional expressions in PostgreSQL using ... https://www.datacamp.com Documentation: 7.4: Conditional Expressions - PostgreSQL
CASE. The SQL CASE expression is a generic conditional expression, similar to if/else statements in other languages: CASE WHEN condition THEN result ... https://www.postgresql.org Documentation: 8.2: Conditional Expressions - PostgreSQL
CASE. The SQL CASE expression is a generic conditional expression, similar to if/else statements in other languages: CASE WHEN condition THEN result ... https://www.postgresql.org Documentation: 8.4: Conditional Expressions - PostgreSQL
9.16.1. CASE. The SQL CASE expression is a generic conditional expression, similar to if/else statements in other programming languages: CASE ... https://www.postgresql.org Documentation: 9.4: Conditional Expressions - PostgreSQL
CASE. The SQL CASE expression is a generic conditional expression, similar to if/else statements in other programming languages: CASE WHEN condition ... https://www.postgresql.org Documentation: 9.5: Conditional Expressions - PostgreSQL
CASE. The SQL CASE expression is a generic conditional expression, similar to if/else statements in other programming languages: CASE WHEN condition ... https://www.postgresql.org PostgreSQL CASE - PostgreSQL Tutorial
2) Simple PostgreSQL CASE expression in a WHEN clause, the CASE returns the corresponding result in the THEN clause. If CASE does not find any matches, it returns the else_result in that follows the E... https://www.postgresqltutorial PostgreSQL CASE ... END with multiple conditions - Stack ...
SELECT *, CASE WHEN (pvc IS NULL OR pvc = '') AND (datepose < 1980) ... OR datepose = 0) THEN '03' ELSE '00' END AS modifiedpvc FROM my_table; gid ... https://stackoverflow.com 條件資料表達式
本節描述在PostgreSQL 裡可以用的SQL兼容的條件資料表達式。 ... SQL CASE 資料表達式是一種通用的條件資料表達式,類似於其它語言中的if/else 語句。 ... 如果沒有WHEN condition 為真,那麼 case 資料表達式的結果就是在ELSE 子句裡的值 ... http://twpug.net |