The table or tabid attribute specifies the table name or tabid table identifier, as shown in the optimized SQL of the db2exfmt output that is being accessed.
TABLE或TABID属性指定了表名和表id即表的标识符，显示在被访问的db 2 exfmt输出的优化SQL中。
If we were to add another row to this table, it would have an identifier of 4.
如果我们向这个表中添加另外一行，那么该行的标识将会是4。
FETCH: Fetches columns from a table using a specific record identifier.
FETCH：使用指定的记录标识符从表中读取列。
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