postgresql nullif
SELECT NULLIF(value, '(none)') ... 在這個例子中，如果value 是（none），則回傳null，否則回傳value ... ,... the SQL -compliant conditional expressions available in PostgreSQL. ... The NULLIF function returns a null value if value1 equals value2 ; otherwise it returns ... ,The NULLIF function returns NULL if and only if value1 and value2 are equal. Otherwise it returns value1. This can be used to perform the inverse operation of ... ,This documentation is for an unsupported version of PostgreSQL. ... The NULLIF function returns a null value if value1 equals value2; otherwise it returns value1. ,This documentation is for an unsupported version of PostgreSQL. ... The NULLIF function returns a null value if value1 equals value2; otherwise it returns value1. ,The nullif() function returns a null value, if a the value of the field/column defined by the first parameter equals that of the second. Otherwise, it will return the ... ,This tutorial shows you how to apply the PostgreSQL NULLIF function to substitute the null values for displaying data and preventing division by zero error. ,PostgreSQL nullif is a common conditional expression used to handle null values or expressions in PostgreSQL. nullif also used with the coalesce function to ... ,PostgreSQL NULLIF 函数的示例. 首先，创建 posts 表：. CREATE TABLE posts ( id ... ,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。 ... 當且僅當 value1 和 value2 相等時，NULLIF 才返回NULL。 否則它返回value1。
| 相關軟體 PostgreSQL (64-bit) 資訊 | |
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 postgresql nullif 相關參考資料
9.17. 條件表示式- PostgreSQL 正體中文使用手冊
SELECT NULLIF(value, '(none)') ... 在這個例子中，如果value 是（none），則回傳null，否則回傳value ... https://docs.postgresql.tw Documentation: 12: 9.17. Conditional Expressions - PostgreSQL
... the SQL -compliant conditional expressions available in PostgreSQL. ... The NULLIF function returns a null value if value1 equals value2 ; otherwise it returns ... https://www.postgresql.org Documentation: 7.1: Conditional Expressions - PostgreSQL
The NULLIF function returns NULL if and only if value1 and value2 are equal. Otherwise it returns value1. This can be used to perform the inverse operation of ... https://www.postgresql.org Documentation: 8.4: Conditional Expressions - PostgreSQL
This documentation is for an unsupported version of PostgreSQL. ... The NULLIF function returns a null value if value1 equals value2; otherwise it returns value1. https://www.postgresql.org Documentation: 9.2: Conditional Expressions - PostgreSQL
This documentation is for an unsupported version of PostgreSQL. ... The NULLIF function returns a null value if value1 equals value2; otherwise it returns value1. https://www.postgresql.org How to Use nullif() in PostgreSQL | PopSQL
The nullif() function returns a null value, if a the value of the field/column defined by the first parameter equals that of the second. Otherwise, it will return the ... https://popsql.com PostgreSQL NULLIF function - PostgreSQL Tutorial
This tutorial shows you how to apply the PostgreSQL NULLIF function to substitute the null values for displaying data and preventing division by zero error. https://www.postgresqltutorial PostgreSQL NULLIF | How NULLIF Function Works in ...
PostgreSQL nullif is a common conditional expression used to handle null values or expressions in PostgreSQL. nullif also used with the coalesce function to ... https://www.educba.com PostgreSQL NULLIF-PostgreSQL轻松学-SJK66.COM
PostgreSQL NULLIF 函数的示例. 首先，创建 posts 表：. CREATE TABLE posts ( id ... https://pg.sjk66.com 條件資料表達式
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。 ... 當且僅當 value1 和 value2 相等時，NULLIF 才返回NULL。 否則它返回value1。 http://twpug.net |