index clause 中文意思是什麼
index clause
解釋
指數條款-
If an attempt is made to enter data for which there is a unique index and the ignore dup key clause is set to on, only the rows violating the unique index fail
如果在存在唯一索引並且ignore _ dup _ key子句設置為on的情況下輸入數據,則只有違反unique索引的行才會失敗。 -
The index of the beginning of the guard clause
:監護子句開始處的索引 -
The index of the instruction after the end of the guard clause
:監護子句後面的指令的索引關于 -
The maxdop clause can now be specified on index data definition language statements, controlling the number of parallel operations used by that specific statement
Maxdop子句現在可以在索引數據定義語言( ddl )語句上指定,以控制特定語句所使用的并行操作的數目。 -
When creating a partitioned table space in db2 udb v7, db2 divides the data among the partitions according to the part clause of the create index statement
在db2 udb v7中創建分區的表空間時, db2根據create index語句的part子句將數據劃分到幾個分區上。 -
It lets db2 use the index to immediately look up the row or rows that satisfy the two simple predicates in the where clause
它讓db2使用索引來立即查找滿足where子句中的兩個簡單謂詞的行。
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