partitioning

I want to create partitions based on last digit of employee id, i.e all ids ending with 0 go to first partition , ending with 1 go to second partition and so on.. This way I want to create 10 partitions, employee id can be int or varchar which ever is easy and fast in making partition. Currently we have 10 separate tables employee_01, employee_02... (dont like this) Although the retrieval and insertion time will be enhanced by no means, but maintainability would be increased by huge factors, thanks Edit: How do I specify partitioning criteria based on last digit of employee I was wondering if

I have a table that I would like to partition in MYSQL 5.5. That I know how to do, but what I also need is to specify a disk for each of my partitions. For example, I would like to put: P01 in c:\ P02 in d:\ ....... and so on. I'm currently using this statement: (which doesn't fulfil my requirements, but works perfectly) ALTER TABLE transaction_transaction PARTITION BY RANGE (effectiveDate_)( PARTITION p01 VALUES Less Than (1288562400000), PARTITION p02 VALUES Less Than (1293660000000), PARTITION p03 VALUES Less Than (1298757600000), PARTITION p04 VALUES Less Than (1303855200000), PARTITION

Is there any way to change the title sizes of a ctree plot? Use the following variables to quickly set up a ctree plot a<-c(41, 45, 50, 50, 38, 42, 50, 43, 37, 22, 42, 48, 47, 48, 50, 47, 41, 50, 45, 45, 39, 45, 46, 48, 50, 47, 50, 21, 48, 50, 48, 48, 48, 46, 36, 38, 50, 39, 44, 44, 50, 49, 40, 48, 48, 45, 39, 40, 44, 39, 40, 44, 42, 39, 49, 50, 50, 48, 48, 47, 48, 47, 44, 41, 50, 47, 50, 41, 50, 44, 47, 50, 24, 40, 43, 37, 44, 32, 43, 42, 44, 38, 42, 45, 50, 47, 46, 43, 37, 47, 37, 45, 41, 50, 42, 32, 43, 48, 45, 45, 28, 44,38, 41, 45, 48, 48, 47 ,49, 16, 45, 50, 47, 50, 43, 49, 50) X1<-c(NA

I am trying to run this function in PostrgeSQL: CREATE OR REPLACE FUNCTION create_partition_and_insert() RETURNS trigger AS $BODY$ DECLARE partition VARCHAR(25); _date text; BEGIN EXECUTE 'SELECT REPLACE(' || quote_literal(NEW.date) || ',''-'',''_'') into _date'; partition := TG_RELNAME || '_' || _date || ‘p’; IF NOT EXISTS(SELECT relname FROM pg_class WHERE relname=partition) THEN RAISE NOTICE 'A partition has been created %',partition; EXECUTE 'CREATE TABLE ' || partition || ' (check (date = ''' || NEW.date || ''')) INHERITS (' || TG_RELNAME || ');'; END IF; EXECUTE 'INSERT INTO ' ||

I have a table which has a partition of type int but which I want to convert to string. However, I can't figure out how to do this. The table description is: Col1 timestamp Col2 string Col3 string Col4 string Part_col int # Partition information # col_name data_type comment Part_col int The partitions I have created are Part_col=0, Part_col=1, ..., Part_col=23 I want to change them to Part_col='0' etc I run this command in hive: set hive.exec.dynamic.partitions = true; Alter table tbl_name partition (Part_col=0) Part_col Part_col string; I have also tried using "partition (Part_col)" to change

I have a very complex Oracle view based on other materialized views, regular views as well as some tables (I can't "fast refresh" it). Most of the time, existing records in this view are based on a date and are "stable", with new record sets having new dates. Occasionally, I receive back-dates. I know what those are and how to deal with them if I were maintaining a table, but I would like to keep this a "view". A complete refresh would take around 30 minutes, but it only takes 25 seconds for any given date. Can I specify that only a portion of a materialized view should be updated (i.e. the