What is putty, Xming and MobaXterm

• Putty is a terminal for connecting to a UNIX box
• Xming is used to get GUI from putty when executing jar files etc
• Latest tool  MobaXterm is a combination of putty and Xming

SQL Joins

Reference:
http://www.w3schools.com/sql/sql_join_left.asp
http://stackoverflow.com/questions/6559261/left-outer-join-using-sign-in-oracle-11g

TNS names for TOAD

C:\Oracle\product\10.1.0\Client_1\network\ADMIN

Host file path to configure the IP address for DNS

C:\Windows\System32\drivers\etc