Warning, /OnlineDB/EcalCondDB/doc/README-channelview.txt is written in an unsupported language. File is not indexed.
0001 Channelview Table
0002
0003 Overview
0004
0005 The channelview contains mappings from array based numbering systems
0006 used by ECAL to a single integer (logic_id). It also contains
0007 mappings from one type of channel to another, for example from
0008 crystal number to high voltage channel.
0009
0010 TODO: Describe the mappings in more detail.
0011
0012
0013
0014 Creating channelview table from scratch
0015
0016 To create the channelview table from scratch, use the
0017 "define-channels.pl" script in the perl/ directory.
0018
0019 TODO: more information about this
0020
0021
0022
0023 Copying channelview tables from one DB to another
0024
0025 Because creating the channelview table from scratch is quite slow,
0026 you may wish to simply copy a complete channelview table from one
0027 table to another. There are two ways to do this.
0028
0029
0030
0031 Method 1 - Using a database link
0032
0033 -- Connect to the target database
0034 lxplus> sqlplus [targetDB]
0035
0036 -- Create backups of the channelview tables
0037 SQL> create table bkup_channelview as select * from channelview;
0038 SQL> create table bkup_viewdescription as select * from
0039 channelview;
0040
0041 -- Create the database link
0042 SQL> create database link ecalh4db.world connect to cond01
0043 identified by [password] using 'pccmsecdb.cern.ch:1521/ecalh4db';
0044
0045 -- Make sure the database link works
0046 SQL> select count(*) from channelview@ecalh4db.world;
0047
0048 -- Drop the old channelview tables
0049 SQL> drop table channelview;
0050 SQL> drop table viewdescription;
0051
0052 -- Copy the other channelview tables using the DB link
0053 SQL> create table channelview as select * from
0054 channelview@ecalh4db.world;
0055 SQL> create table viewdescription as select * from
0056 viewdescription@ecalh4db.world;
0057
0058 -- Remove the backup tables
0059 SQL> drop table bkup_channelview;
0060 SQL> drop table bkup_viewdescription;
0061
0062
0063
0064 Method 2 - Using oracle tools EXP and IMP
0065
0066 You can also use the Oracle export/import tools to do the table
0067 copy. Note you may run into some problems with this method if the
0068 databases are of different version. Use the setoraenv command to
0069 set your environment to use Oracle tools appropriate to your target
0070 database.
0071
0072 # Have a look at the help files
0073 lxplus> exp help=yes
0074 lxplus> imp help=yes
0075
0076 # Export the tables
0077 lxplus> exp [source connection string] TABLES=(CHANNELVIEW,VIEWDESCRIPTION)
0078
0079 # Import the tables
0080 lxplus> imp [dest connection string] TABLES=(CHANNELVIEW,VIEWDESCRIPTION)
