sql中nvl函数用法sql English Answer: The NVL function in SQL stands for "NVL," which means "Null Value Library." It is a function that allows you to replace NULL values with a default value. This can be useful in situations where you want to avoid errors or to ensure that your data ...
1、SQL语句的DECODENVL()函数SELECTDECODE(WP01.ONDO_KBN,0 象外1,常温,2,保冷)ASONDO_KBNFROMWP01_S_HAITOTALWP01/分析:当 WP01.ONDO_KBN=0,将??象外赋值当 WP01.ONDO_KBN 时,将常温赋值当 WP01.ONDO_KBN=2,将保冷赋值NVL()函数:NVL(ARG,VALU 理标如果前面的 ARG为NULL 那么返回的值为后面的 ...
it is better equipped for multiple values and it does less work, therefore it’s the greener option (doing less work means using less resources, like power, and therefore
Immutable data means strong consistency combined with horizontal read scalability, plus built-in caching. Datomic is a distributed database designed to enable scalable, flexible and intelligent applications, running on next-generation cloud architectures. Tinkerpop - - Open source software products in the...