The function of this operator is similar to the AND operator, but it only applies to the word immediately following it.
这个操作符的作用和AND差不多,但它只对紧跟着它的一个搜索词起作用。
To make such conversions between arrays and tables possible, DB2 provides the new ARRAY_AGG function and UNNEST operator.
要使阵列和表之间的转换成为可能,DB 2要提供新的array_agg函数和UNNES t运算符。
An operation can be a relational operator, a system - or user-defined function, or an SQL operator, such as GROUP BY, ORDER BY, and so on.
操作可以是一个关系运算符,或者系统或用户定义的函数,也可以是一个sql操作符,例如GROUP BY、ORDER BY等。
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