In the above example, the following statement would access Actor specific features: base_Actor null implies base_Actor.someFeatureXyz.
在以下的示例中, 接下来的声明将会访问动作指定的特性: base_Actornull 应用于 base_Actor.someFeatureXyz.
If the condition evaluates to FALSE or NULL, the loop is bypassed, and control passes to the next statement.
如果条件的求值结果为FALSE或NULL，那么将绕过循环，并且控制被传递给下一条语句。
So in the example above, the NOT NULL constraint would get violated, and the INSERT statement would error out.
因此，在上面的示例中，会违反NOT NULL约束，INSERT语句会出错。
But in DB2, you must provide a value for NOT NULL columns in an INSERT statement when a default hasn't been defined.
但在DB 2中，如果未定义该值，则必须在insert语句中为NOTnull列提供值。
The null indicator values are populated during the execution of the SQL FETCH statement.
空指示符值在SQLFETCH语句执行过程中填充。
Two threads can get inside of the if statement concurrently when instance is null.
当instance为null时，两个线程可以并发地进入if语句内部。
Elements in positions 11 and up do not exist (note that this is not the same as being NULL). Therefore, a statement such as.
位置11以及更高位置中的元素都不存在(请注意这不同于NULL)。
Note that the test for null values is gone from the for statement, because you want to handle that condition by writing a diagnostic record.
注意，对null值的检查从for语句中消失了，因为希望通过写诊断记录来处理这种情况。
Note that when using OLAP data sources, you will not be able to use null in the else statement, and will need to use a static value.
注意，在使用olap数据源时，不能在else语句中使用null，需要使用一个静态值。
The null indicator values are set by the RPG HANDLE_UPDATE sub-procedure prior to executing the SQL UPDATE statement.
空指示符值在执行SQLupdate语句之前通过RPG handle_update子过程设置。
If you assume that an argument is not NULL, for example, use an assertion statement to check for that assumption.
例如，您假设了某个引数不是NULL，便可使用判断提示陈述式来检查这个假设。
DB2 SQL - How can I display nothing instead of a hyphen when the result of my case statement is NULL?
DB 2SQL-我怎么能代替连字号当我的case语句的结果是空的没有显示？
DB2 SQL - How can I display nothing instead of a hyphen when the result of my case statement is NULL?
DB 2SQL-我怎么能代替连字号当我的case语句的结果是空的没有显示？
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