HTTPS TLS performance optimization details

HTTPS TLS performance optimization details HTTPS (HTTP over SSL) is a security-oriented HTTP channel and can be understood as HTTP + SSL/TLS, that is, adding an SSL/TLS layer under HTTP as a security foundation. The predecessor of TLS is SSL. Currently, TLS 1.2 is widely used.     TLS performance tuning TLS is widely considered to […]

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oracle xe backup

ORACLE_BASE=/u01/app/oracle export ORACLE_BASE ORACLE_HOME=/u01/app/oracle/product/11.2.0/xe export ORACLE_HOME ORACLE_SID=XE export ORACLE_SID PATH=$ORACLE_HOME/bin:$PATH export PATH BKUP_DEST=/home/mohan/backups find $BKUP_DEST -name ‘backup*.dmp’ -mtime +10 -exec rm {} \; cd /home/mohan/backups && /u01/app/oracle/product/11.2.0/xe/bin/exp schema/password FILE=backup_`date +’%Y%m%d-%H%M’`.dmp STATISTICS=NONE startup nomount pfile=/u01/app/oracle/product/11.2.0/xe/dbs/initXE.ora / create database maxinstances 1 maxloghistory 2 maxlogfiles 16 maxlogmembers 2 maxdatafiles 30 datafile ‘/u01/app/oracle/oradata/XE/system.dbf’ size 200M reuse autoextend on next […]

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 Create additional database in Oracle Express edition 

 Create additional database in Oracle Express edition  *In my windows i have installed oracle11g express edition i want to create new database for my testing purpose but the express edition doesnot support DBCA utiltiy let us we can discuss How to Create additional database in Oracle Express edition or How to create manual database in […]

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How to list all database names in Oracle

1) To view database select * from v$database; 2) To view instance select * from v$instance; 3) To view all users select * from all_users; 4) To view table and columns for a particular user select tc.table_name Table_name ,tc.column_id Column_id ,lower(tc.column_name) Column_name ,lower(tc.data_type) Data_type ,nvl(tc.data_precision,tc.data_length) Length ,lower(tc.data_scale) Data_scale ,tc.nullable nullable FROM all_tab_columns tc ,all_tables t […]

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EXP-00002: error in writing to export file

EXP-00002: error in writing to export file While exporting table or schema using exp/imp utility you may come across below error. Most of the time this error occurs due to insufficient space available on disk.so confirm space is available where you are taking taking export dump and re-run export. [oracle@DEV admin]$ exp test/test@DEV tables=t1,t2,t3,t4 file=exp_tables.dmp log=exp_tables.log Export: Release 9.2.0.8.0 – […]

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