db2 truncate table

To log on to the database, follow these steps: DB2 uses the command window to connect to the database 1. Export to a file to obtain the SQL statementDb2look-D cqyancao-e-o dB. SQL-I db2user-W pswDatabase Name to output file name username and password Example: db2look-D department-u Walid-e-o db2look. SQL -- This generates DDL statements for all tables and associated objects created by user Walid.-- The db2look output is sent to a file named db

test: with Oozie, execute Sqoop action to import data from DB2 into the Hive partition table. Places to be aware of:1, to add hive.metastore.uris this parameter. Otherwise, the data cannot be loaded into the hive table. Also, if there is more than one such operation in an XML literal, this parameter needs to be configured in each action.2, be aware of the escape

Label:>[Error] Script line: 1-1---------------------------------------"STATUS" is not valid in the context where it is used. sqlcode=-206, sqlstate=42703, driver=3.53.71More exceptions ... An error occurred during implicit system action type "2". Information returned for the error includes SQLCODE " -206", SQLSTATE "42703" and Message Tokens "STATUS": sqlcode=-727, sqlstate=56098, driver=3.53.71This error is always reported when executing the SQL text because:In

If you want to create a table with a known table structure in db2, you can use: (1) create table a as select * from B where 1 (2) create table a as select * from B ---- create table a, and copy the data in

The following articles mainly introduce the DB2 database lock table problem. In actual operations, if the center queries data, pay attention to it. If interactive data query is used, the command center will apply the s lock to the queried records. at this time, if you want to update the record, because update requires the x lock, the exclusive lock will be in the lock wait. First, enable the monitoring swi

This article calls the shell script through Java code and passes in the parameter implementation DB2 the database table exports to the file, the code is as follows:Import Java.io.file;import java.io.ioexception;import java.io.inputstreamreader;import java.io.LineNumberReader; Import Java.util.HashMap; Import Org.slf4j.logger;import org.slf4j.LoggerFactory; Import Com.*.dmp.bean.agentconfiginfo;import com.*.

How to obtain the details of a user table in DB2 1. Get the User Name of the current user SELECT CURRENT SCHEMA FROM SYSIBM.SYSDUMMY1 2. Obtain the names of all tables under a user. Select creator, TYPE, NAME, remarks from sysibm. Variables Ables where type = 'T' and creator = 'username' -- case sensitive 3. Obtain the details of a table under the current user.

---- Start Temporary tables are usually used to define temporary sets. However, when most temporary sets are required, we do not need to define temporary tables. When we use only one temporary set in an SQL statement, we can useNested table expressionsTo define a temporary set. When we need to use the same temporary set multiple times in an SQL statement, we can useCommon table expressionsThe temporary

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; EXECUTEI

When using DB2 databases, it is inevitable to insert special characters into table fields. This article will show you how to insert special characters into DB2 database tables for your reference, hope to help you,1. Insert the character @ # (single reference)Insert into DB2ADMIN. aaaa values (@#@#@#@#);Insert into DB2ADMIN. aaaa values (# A ######## B @#);2. Inse

Merge into Table1 t1 Using (select Column1, column2 from table2) T2 On t1.column1 = T2.column1 When matched then update set t1.column2 = T2.column2 When not matched then insert values (COLUMN1,COLUMN2) The above is to insert or update the data in the table2 into the Table1. But for developers, we're working with a single record to determine whether this data is an insert or an update. The treatment for DB2 is as follows: Merge into Table1 t1us

Label:ORACLE : --Time Turn string To_char (sysdate, ' Yyyymmddhh24miss ') --String Turn time Select To_date (' 20140701125751 ', ' Yyyymmddhh24miss ') from dual--2014-07-01 12:57:51 --Query table SELECT * FROM all_tables WHERE table_name = ' {0} ' --Query column SELECT Aa.table_name as Tableename, Aa.column_name as ColName, NVL (Bb.comments, aa.column_name) as Coldesc From ( SELECT TABLE_NAME, COLUMN_NAME, Comments From All_col_comments WHERE table_na

1. Add a fieldALTER TABLE [table_name] add [column_name] [Column_type]2. Change the field typeALTER TABLE [TABLE_NAME] ALTER COLUMN [COLUMN_NAME] Set data type [Column_type]Note: Changes to the field type are limited, such as changing the field to be larger than the previous type, if you want to change the size or change the decimal length, you must first drop the original column and then add it again.For e

Db2 import and export table data 1. export the DEL Text File export to D: \ t_testtable2012121_del of del select * from T_TESTTABLE @ www.2cto.com 2. export the ixf text file. the ixf file contains the table structure. The db2 database information export to D: \ t_testtable2012121_ixf of ixf select * from T_TESTTABLE @

DB2 alter: Add/delete/Reset Column 1. Add Fields Alter table [table_name] add [column_name] [column_type] 2. Change the field type Alter table [table_name] alter column [column_name] Set Data Type [column_type] Note: There are restrictions on changing the field type. For example, you can change the field to be larger than the previous type length. to change

Db2 xml to table Version: DB2 Version 9.1 1. Create a test table and initialize data create table emp (doc XML);INSERT INTO EMP VALUES (' 2. Use the xmltable method to convert xml format data to a temporary table ?SELECT X.* FROM

match the pagesize of the table. Then, the maintenance personnel can use the statements used to create the table space in the original DB2 to refer to creating their own new table space. Use db2look-d $ dbname-l-e-x-o $ db. Layout In this way, you can view dB. layout to copy some parameters of the originally create

From: http://www.db2china.net/club/archiver/tid-10129.html Reference: ---- view the number of locks in the table in the sample database Select tabschema, tabname, count (*) as number_of_locks_held from sysibmadm. locks_held -- where db_name = 'sample' group by dbpartitionnum, tabschema, tabname ---- query database lock table information DB2 "select agent_id, tab

DB2 How to adjust table space sizeJust received a call from the customer, the program has been an error, all the business can not be done, copied a copy of the application Server (WebLogic) log, the log shows:Warn:2009-06-18 16:24:32,421:jdbcexceptionreporter[line:77}: SQL Error: -99999, Sqlstate:nullError:2009-06-18 16:24:32,422:jdbcexceptionreporter[line:78}: [ibm][db