那么你应该首先做一个使用分析变量的子查询：sum() over ()，它将显示每个字段的聚合数据，然后你可以在case中使用它。一般来说，这一切都取决于你想得到的结果。张贴一个无效的代码（错别字，错别字.）没有任何样本数据，应该适用于该规则和期望的结果并不能帮助我们帮助你。我创建了自己的示例表，而您的代码-如您所知-不起作用：型1.包含“ET...
oracle 具有多个条件的Case语句您可以省略case语句中的表达式，并使“when”语句更加详细。
The searched case statement is the much more powerful cousin of the simple case statement. The searched case statement is like an if…then…else structure, and can be used to conditionally search and replace values using logical operators and multiple conditions. Let's look at an example: SELEC...
oracle 具有多个条件的Case语句您可以省略case语句中的表达式，并使“when”语句更加详细。
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SQL exec dbms_streams_auth.grant_admin_privilege('user') * ADD SCHEMATRANDATA can be used instead of the ADD TRANDATA command when DDL replication is not enabled. Note, however, that if a table has no primary key but has multiple unique keys, ADD SCHEMATRANDATA causes the database to ...
He enters the conditions as shown inFigure 23-7. Figure 23-7 Setting Conditions for Triggering Since the CPU load value ranges from 0-1, Marcus sets theMax trigger valueto 0.95. Marcus wants to be alerted when the CPU usage is high for at least five minutes and setsSustained [s]to 300...
A survey may apply to multiple Expertise if the project encompasses the products associated to the Expertise Surveys must be sent directly from Oracle to the customer. Oracle will not accept surveys that partners send to customers themselves, or that partners complete on a customer’s behalf. Pr...
The format for a searchedcaseexpression is the syntax shown above: The core differences between this and simple expressions are: You can use multiple selectors The selectors are evaluated in everywhenclause the database runs Any SQL conditions that returntrueorfalseare possible in the<boolean co...