This is a discussion on DB2 Load into multiple tables using control centre within the DB2 forums, part of the Database Server Software category; --> I am trying to use DB2 Control Centre (version 8.2) to load one flat file into multiple tables. However, ...
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| I am trying to use DB2 Control Centre (version 8.2) to load one flat file into multiple tables. However, I don't see the options in Control Centre that allows that. Anyone knows how to do this? DB2 Novice |
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| DB2 Novice wrote: > I am trying to use DB2 Control Centre (version 8.2) to load one flat > file into multiple tables. However, I don't see the options in Control > Centre that allows that. > > Anyone knows how to do this? > > DB2 Novice > In one shot using load.. No. How do you distribute the data. Do you parition vertically (column 1 - n to T1, rest to T2) or horizontally (some rows to T1 some rows to T2). There are multiple options: For vertical partitioning the simplest approach would be to just use two LOAD commands For horizontal partitioning I woudl load the fiel into a staging table and then either run two loads from cursor or, if you want only one scan: BEGIN ATOMIC FOR row AS SELECT * FROM staging DO INSERT INTO T1 SELECT * FROM TABLE(VALUES(row.c1, ...)) AS S WHERE <cond1>; INSERT INTO T2 SELECT * FROM .... <cond2>; END % Cheers Serge -- Serge Rielau DB2 SQL Compiler Development IBM Toronto Lab |
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| Thanks serge. One more question on this Load or import. I believe the only that really separate these tools is the speed. Either way, I believe my accounting department people can still read the tables when I load or import the data? I am just wondering why load doesn't support one load into multiple tables like what DB2 import can do? DB2 Novice |
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| DB2 Novice wrote: > Thanks serge. > One more question on this Load or import. I believe the only that > really separate these tools is the speed. Either way, I believe my > accounting department people can still read the tables when I load or > import the data? I am just wondering > why load doesn't support one load into multiple tables like what DB2 > import can do? > > DB2 Novice > Uhm.. IMPORT does NOT support multiple targets in one shot. What I posted was regular SQL. Anyway the difference betwen IMPORT and LOAD is that IMPORT uses an SQL interface ethat is it will fire trigger. And yes. It will be slower There is an online LOAD capability and I think (?) similar options are available for IMPORT. The way it works is that the loaded data remains invisible until LOAD is completed and integrity of the data has been verified by the SET INTEGRITY statement (to maintain e.g. RI, MQTs (aka materialized/indexed views) Cheers Serge -- Serge Rielau DB2 SQL Compiler Development IBM Toronto Lab |
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| Ora Dummy wrote: > Load data is invisible til it's issued with set integrity. Waht about > the existing data? AFAIK, table lock is acquired for Load operation. > Quick lookup for Online Load in teh Information center: "Online table load When loading data into a table in Version 8, the table space in which the table resides will no longer be locked. Users have full read and write access to all the tables in the table space, except for the table being loaded. For the table being loaded, the existing data in the table will be available for read access if the load is appending data to the table. These new load features significantly improve the availability of the data and help customers deal with the maintenance of large data volumes and shrinking maintenance windows. " -- Serge Rielau DB2 SQL Compiler Development IBM Toronto Lab |
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| You cannot load into multiple tables using one command. load into table one by one, specify the position in the file. "DB2 Novice" <db2novice@yahoo.com> wrote in message news:<1113294910.987328.14600@o13g2000cwo.googlegr oups.com>... > I am trying to use DB2 Control Centre (version 8.2) to load one flat > file into multiple tables. However, I don't see the options in Control > Centre that allows that. > > Anyone knows how to do this? > > DB2 Novice |
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| Serge, Thanks. That is for table lock for DB2 Load. However, those users who are using import utility is still not so fortunate to still read let alone write while the table is being imported. DB2 Novice |
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| DB2 Novice wrote: > Serge, > > Thanks. That is for table lock for DB2 Load. However, those users who > are using > import utility is still not so fortunate to still read let alone write > while the table is being imported. Is that so? Check out online import: http://publib.boulder.ibm.com/infoce...6f%72%74%22%20 Noe that all I do to find these thing sis type in the obvious search patterns "online load" and "online import" into teh information center. Cheers Serge -- Serge Rielau DB2 SQL Compiler Development IBM Toronto Lab |
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