database-partitioning

问题 I got to know as we cannot convert existing non-partitioned table to partitioned table but the below link from the Oracle suggest that with the help of "ONLINE" keyword we can do it. https://docs.oracle.com/en/database/oracle/oracle-database/12.2/vldbg/evolve-nopartition-table.html#GUID-5FDB7D59-DD05-40E4-8AB4-AF82EA0D0FE5 CREATE TABLE my_tab ( a NUMBER(38,0), b NUMBER(38,0)); ALTER TABLE MY_TAB MODIFY PARTITION BY RANGE (a) INTERVAL (1000) ( PARTITION p1 VALUES LESS THAN (1000)) ONLINE; But

问题 CREATE TABLE countrymeasurements ( countrycode int NOT NULL, countryname character varying(30) NOT NULL, languagename character varying (30) NOT NULL, daysofoperation character varying(30) NOT NULL, salesparts bigint, replaceparts bigint ) PARTITION BY LIST(countrycode) ( partition india values(1), partition japan values(2), partition china values(3), partition malaysia values(4) ); I am getting ERROR: syntax error at or near "(". What i am missing here. I am using postgres12 回答1: I don't

问题 I would like to know if the following steps are possible and how fast this is: Create a partition named part1 in Table A Drop partition part1 in Table B Import the Table A partition part1 into Table B Can you provide me with an example if it is possible indeed? Or any resources I can look at? Note that the tables would have the exact same structure. 回答1: You can do something similar with the ALTER TABLE ... EXCHANGE PARTITION command. This would exchange a single partition with a table that

问题 I would like to know if the following steps are possible and how fast this is: Create a partition named part1 in Table A Drop partition part1 in Table B Import the Table A partition part1 into Table B Can you provide me with an example if it is possible indeed? Or any resources I can look at? Note that the tables would have the exact same structure. 回答1: You can do something similar with the ALTER TABLE ... EXCHANGE PARTITION command. This would exchange a single partition with a table that

来源： https://stackoverflow.com/questions/57039108/attach-partition-list-to-existing-table-in-postgres-11

来源： https://stackoverflow.com/questions/57039108/attach-partition-list-to-existing-table-in-postgres-11

来源： https://stackoverflow.com/questions/57039108/attach-partition-list-to-existing-table-in-postgres-11

来源： https://stackoverflow.com/questions/57039108/attach-partition-list-to-existing-table-in-postgres-11

来源： https://stackoverflow.com/questions/64287967/propagation-of-bigquery-parition-cluster-keys-to-a-cte-table-performance

来源： https://stackoverflow.com/questions/64287967/propagation-of-bigquery-parition-cluster-keys-to-a-cte-table-performance