How to unload data from Db2 table?
How to unload data from Db2 table?
Select option Unload, from the Utilities pull-down menu. From the Unload Utility window, specify the unload type by inserting 1 for disk unload or 2 for tape unload. The default is Disk Unload. Specify the name of the table and data set you want to unload.
What does the unload utility allow you to unload?
Because UNLOAD utility allows you to extract the contents of the whole table.
What is Sysrec in JCL?
The SYSREC data set is a single data set into which the data is to be unloaded. The SYSREC data set is required. The SYSPUNCH data set is optional and contains the generated LOAD utility control cards that can be used for reloading the data, if desired.
What is load utility in Db2?
The LOAD utility loads records into the tables and builds or extends any indexes that are defined on them. If the table space already contains data, you can choose whether you want to add the new data to the existing data or replace the existing data.
What is Db2 unload?
UNLOAD unloads records to sequential data sets. One pass through the input data set is made. If UNLOAD is processing a table space or partition, Db2 takes internal commits. These commits provide commit points at which the utility can be restarted if the utility stops in this phase.
What is IKJEFT01 utility JCL?
IKJEFT01 is the TSO/E program. You use it whenever you wish to perform a TSO function within a batch job. It allows you to perform any TSO function. For a general list of all TSO functions, type TSO HELP. Additionally, IKJEFT01 allows you to run programs written in TSO/E Command List (CLIST) and/or TSO/E REXX.
What is Reorg and Runstats in DB2?
1. runstats and reorgs. runstats is for collecting indexes and tables statistics information which to enable the DB2 optimizer to generate efficient access plan. reorgs is for reorganizing tables and indexes.
What is Dsnutilb?
The utilities batch program (DSNUTILB) is split into multiple load modules: a release-independent load module called DSNUTILB, multiple release-dependent modules DSNUT111 or DSNUT121, and, for Db2 11, multiple utility-dependent load modules.
What is DSNTEP2 in Db2?
DSNTEP2 is a sample dynamic SQL program that can issue any SQL statement that can be executed dynamically. DSNTEP2 is written in PL/I language and available in two versions: a source version that you can modify to meet your needs or an object code version that you can use without the need for a PL/I compiler.
What is the purpose of Runstats?
RUNSTATS is a DB2 utility that scans a table space or indexes to gather information about space utilization and index efficiency. The information gathered is stored in the DB2 system tables and used by the SQL optimizer to select the best access paths during the bind process.
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