I did a quick compare of the table columns, datatypes and if the columns allowed nulls- no differences- so what’s up?
About Partition Exchange Loading. The EXCHANGE PARTITION command will move a partition from a source table to target table and alter each table's metadata.
ALTER TABLE TAB1 EXCHANGE PARTITION P4706 WITH TABLE TAB_CPY_4706; ERROR at line 1: ORA-14097: column type or size mismatch in ALTER TABLE EXCHANGE PARTITION. The target can be any partitioned table – a dimension, a fact or any other table.
Scripting on this page enhances content navigation, but … alter table call exchange partition data_2007 with table call_temp; This command swaps over the definitions of the named partition and the CALL table, so that the data suddenly exists in the right place in the partitioned table.
The Exchange Partition feature is implemented as part of HIVE-4095.
Oracle EXCHANGE PARTITION One of the most time-consuming processes in any data warehouse is the creation of the Extract, Transformation and Load (ETL) processes. ALTER TABLE
alter table…exchange partition命令可以用一个分区或子分区交换现有的表。 语法介绍.
For a range partition table without index and constraint, if exchange one partition, say partition m3, with a table using clause "without validation", then rows stay in m3 after exchange might need to stay in a different partition if the definition of range partition is strictly followed. Partition Exchange is about being able to exchange a partition (or sub-partition) of a table with another (non-partitioned) table. When the command is executed, the source table's partition folder in HDFS will be renamed … alter table IBTRESDBA.APNTMT exchange partition Y14M05 with table IBTRESDBA_HIST.EXTAB_000_001_651 without validation update global indexes EXCHANGE PARTITION Elapsed: +0 00:01:28.508280 All indexes were usable after the DDL, but there didn't seem to be any performance improvement. 如果您打算添加大量的数据到分区表中，可以使用alter table…exchange partition命令来进行批量加载。
Exchanging multiple partitions is supported in Hive versions 1.2.2, 1.3.0, and 2.0.0+ as part of HIVE-11745. One of the best features in Oracle data warehousing is the ability to swap-out standard Oracle tables and partitioned tables. This is used to exchange the tablespace files between a partition and another table. select col#, name from sys.col$ where obj# in
To exchange partition p0 in table e with table e2, you can use the ALTER TABLE statement shown here: . ALTER TABLE sales EXCHANGE PARTITION p_sales_jun_2007 WITH TABLE sales_jun_2007 INCLUDING INDEXES; For more information about partition exchange load, refer to Partition Administration .