This means that subsequent SQL OPEN and CLOSE operations will merely reposition the cursor to the first row of the result set.
这意味着后续SQL OPEN和CLOSE操作只是将游标重新定位到结果集的第一行。
For MDC tables, the selection of BLOCKINSERT may improve the performance of INSERT operations by locking at the block level and avoiding row locks for INSERT operations.
对于mdc表,选择BLOCKINSERT可以提高INSERT操作的性能,因为使用的是块级的锁,避免了为INSERT操作使用行锁。
This function is used in select operations to retrieve the row security label column.
该函数在选择操作中检索行安全标签列。
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