TimesTen in memory database Creation
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TimesTen in memory database Creation

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    TimesTen in memory database Creation TimesTen in memory database Creation Document Transcript

    • +++++++++++++++++++++++++++++++++++++++ ++ + Create a TimesTen in memory database +++ +++++++++++++++++++++++++++++++++++++++ Assumption: TimesTen database software has been installed Oracle user has been used for TimesTen installed. So OS user Oracle is the administrator user for creating TimesTen database. 1. Define a Data Source Name (DSN) ============================== DSN defines the configuration of the database and must be defined before creating Database. Modify the sys.odbc.ini [Add DSN anywhere in the ODBC DATA Sources section]
    • 2. Specify New data Source definition =================================== edit sys.odbc.ini to add source definition and save Driver - location of the TimesTen direct linked ODBC driver DataSource - location and name of the database files LogDir - directory for the transaction logs PermSize - Permanent partition of the database size in MB TempSize -Temporary partition of the database size in MB DatabaseCharacterSet - Character Set of the database 3. Verify that database daemon is running ================================
    • 4. ttisql to connect database and create the database store ============================================
    • So mono_ttdb database has been created and loaded into memory. Check the TimesTen in memory Database status +++++++++++++++++++++++++++++++++++++ [oracle@cloud bin]$ ./ttstatus TimesTen status report as of Tue Nov 19 05:09:33 2013 Daemon pid 4161 port 53396 instance tt1122 TimesTen server pid 4170 started on port 53397 -----------------------------------------------------------------------Data store /u01/app/ttdata/datastores/mono_ttdb There are no connections to the data store Replication policy : Manual Cache Agent policy : Manual PL/SQL enabled. -----------------------------------------------------------------------Accessible by group dba End of report [oracle@cloud bin]$ ./ttisql mono_ttdb Copyright (c) 1996, 2013, Oracle and/or its affiliates. All rights reserved. Type ? or "help" for help, type "exit" to quit ttIsql.
    • connect "DSN=mono_ttdb"; Connection successful: DSN=MONO_TTDB;UID=oracle;DataStore=/u01/app/ttdata/datastores/mono_ttdb;DatabaseCh aracterSet=AL32UTF8;ConnectionCharacterSet=US7ASCII;DRIVER=/home/oracle/TimesTen/t t1122/lib/libtten.so;LogDir=/u01/app/ttdata/logs;PermSize=40;TempSize=32;TypeMode=0; (Default setting AutoCommit=1) Current size of the permanent and temporary data stores +++++++++++++++++++++++++++++++++++++++++ Command> dssize PERM_ALLOCATED_SIZE: 40960 PERM_IN_USE_SIZE: 9389 PERM_IN_USE_HIGH_WATER: 9389 TEMP_ALLOCATED_SIZE: 32768 TEMP_IN_USE_SIZE: 9442 TEMP_IN_USE_HIGH_WATER: 9505 Create a user and then object under that user =================================
    • Now check the DataStore and LogDir ============================ [oracle@cloud datastores]$ ls -ltra total 56224 drwxr-xr-x 2 oracle dba 4096 Nov 19 04:39 mono_ttdb drwxr-xr-x 4 oracle dba 4096 Nov 19 04:40 .. drwxr-xr-x 3 oracle dba 4096 Nov 19 05:02 . -rw-rw---- 1 oracle dba 28733432 Nov 19 05:18 mono_ttdb.ds0 -rw-rw---- 1 oracle dba 28758536 Nov 19 05:20 mono_ttdb.ds1 Note: TimesTen maintain two complete images on the disk and known as checkpoints Transaction logs for recovery ====================== [oracle@cloud logs]$ ls -ltra total 212348 drwxr-xr-x 4 oracle dba 4096 Nov 19 04:40 .. -rw-rw---- 1 oracle dba 67108864 Nov 19 05:02 mono_ttdb.res0 -rw-rw---- 1 oracle dba 67108864 Nov 19 05:02 mono_ttdb.res1 -rw-rw---- 1 oracle dba 67108864 Nov 19 05:02 mono_ttdb.res2 drwxr-xr-x 2 oracle dba 4096 Nov 19 05:02 . -rw-rw---- 1 oracle dba 15880192 Nov 19 05:20 mono_ttdb.log0