db2 delete from select

Today we are going to discuss with you three advanced usage of SELECT statements in DB2 databases. We all know that SELECT statements are the most important statements in database queries, this article describes the advanced usage of the three SELECT statements. 1. Create a result table createtablenew_table_name

,descitem_id,max (content)From DETAILTEMP1GROUP BY catentry_id,descitem_id@SELECT * from TableA where catentry_id to (select distinct catentry_id from TableA GROUP by CATENTRY_ID,DESCITEM_ID has COUNT (*) >1) @ --5. Delete temporary table The code is as follows Copy Code drop table detailtemp1@--end There are sever

When you use commands to delete a DB2 database and create a new database, there are often database alias errors. There are two possible causes of this error: 1. this database exists in the system database directory. You can see in the control center and list db directory in the DB2CLP window. 2. The database is "removed" rather than "deleted ". Another possibility is that we used the "Remove" Database Funct

DB2 table deletion is a common operation. The following describes how to delete a table in DB2 for your reference. DB2 Delete tableYou can use the drop table statement to delete a TABLE. When a table is deleted, the row containin

There are many ways to delete DB2 data. The following describes the four most commonly used methods to delete DB2 data. If you have encountered any problems in deleting DB2 data, take a look. 1. Use the DELETE statement, namely:

The following articles describe how to restore and Delete tables in DB2. In actual operations, the DB2 database stores backups and restores data in historical files, and operations such as loading data and deleting tables. if the database name is sample, you can use the following command to list the records of the table to be deleted:

Sysproc.admin_cmd (); --Collect statistical informationCall Sysproc. Admin_cmd ('RUNSTATS on TABLE db2user. S_clm_rate_pol_aaa_test'); --Add new Partition EXECUTEIMMEDIATE'ALTER TABLE Db2user. S_clm_rate_pol_aaa_test ADD PARTITION'||V_partition_name||'starting'||SUBSTR (Etl_date,1,6)||'INCLUSIVE Ending'||V_partition_end||'Exclusive'; SETV_location= 'After you add a new partition'; COMMIT; EXECUTEIMMEDIATE'ALTER TABLE Db2user. S_clm_rate_pol_aaa_test ACTIVATE not logged initially'; for

1. check whether there is an Item with Value = "paraValue" in the select option. 2. add an Item to the select option 3. delete an Item from the select option 4. Delete the selected items in the select statement. 5. In the

1. check whether there is an Item with Value = "paraValue" in the select option.2. add an Item to the select option3. delete an Item from the select option4. Delete the selected items in the select statement.5. In the

---- Start Everyone is familiar with how to delete data. We use this to write: Delete from In fact, this write performance is not good, especially when you delete a large amount of data, to achieve better performance, you can use the following method: Delete from What should I do if I want to

1. Check whether Value quot; paraValue quot; exists in the select option; item2 adds an Item3 item to the select option to delete an Item4 item from the select option to delete option 5 selected in the select option modify the t

Quick deletion of db2 data without writing logs IBM official documentation: Use the not logged initially parameter to reduce logging if an application creates and fills a worksheet Based on the master table, in addition, you do NOT worry about the recoverability of these worksheets (because you can easily re-CREATE them based on the master TABLE), you can specify the not logged initially parameter on the create table statement when creating a workshee

1. Determine whether the select option contains an item with value = "paravalue"2. add an item to the select option3. delete an item from the select option4. Delete the selected items in the SELECT statement.5. Modify the text of