The INV_HISTORY table is created using the command： SQL>CREATE TABLE INV_HISTORY （inv_no NUMBER（3）， inv_date DATE， inv_amt NUMBER（10，2）） partition by range （inv_date） interval （numtoyminterval（1，’month’）） （partition p0 values less than （to_date（’01-01-2005’，’dd-mm-yyyy’））， partition p1 values less than （to_date（’01-01-2006’，’dd-mm-yyyy’）））； The following data has been inserted into the INV_HISTORY table ： INV_NO INV_DATE INV_AMT 1 30-dec-2004 1000 2 30-dec-2005 2000 3 1-feb-2006 3000 4 1-mar-2006 4000 5 1-apr-2006 5000 You would like to store the data belonging to the year 2006 in a single partition and issue the command： SQL> ALTER TABLE inv_history MERGE PARTITIONS FOR（TO_DATE（’15-feb-2006’，’dd-mon-yyyy’））， FOR（TO_DATE（’15-apr-2006’）） INTO PARTITION sys_py； What would be the outcome of this command？（） It executes successfully，and the transition point is set to ’1-apr-2006’.。 It executes successfully，and the transition point is set to ’15-apr-2006’.。 It produces an error because the partitions specified for merging are not adjacent.。 It produces an error because the date values specified in the merge do not match the date values stored in the table.。
论述往复活塞式压缩机活塞杆与十字头联接后的检查内容。
You need to allow the user to toggle between automatic query and no automatic query using a pop-up menu. Which built-in would you use in the menu item command to obtain the relationship name? （） GET_RELATION_PROPERTY 。 SET_RELATION_PROPERTY 。 GET_BLOCK_PROPERTY 。 GET_FORM_PROPERTY。
Which statement is true concerning dropping a pluggable database (PDB)?（） The PDB must be open in read-only mode.。 The PDB must be in mount state.。 The PDB must be unplugged.。 The PDB data files are always removed from disk.。 A dropped PDB can never be plugged back into a multitenant container database (CDB).。
芽孢的结构一般可分为（）、（）、（）和（）四部分。
杨朔国际题材的优秀散文作品是（）
