useful support link for oracle is here
https://support.us.oracle.com/oip/faces/secure/ml3/homepage/home.jspx
support link for oracle
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Category Archives: general
Differentiate services and sid in connection string
This might be a basic information for some experts out there but I felt its worth mentioning it here
how will u differentiate between services and the SID to connect to Oracle using JDBC in the connection string
for SID: it goes like
jdbc:oracle:thin:@localhost:1521:XE
for Services you specify like
jdbc:oracle:thin:@localhost:1521/XE
Class.forName("oracle.jdbc.driver.OracleDriver");
conn =
DriverManager.getConnection(jdbc:oracle:thin:@localhost:1521/XE,system,tiger);
Statement stmt = conn.createStatement();
ResultSet rset = stmt.executeQuery(query);
Mission Accomplished within Oracle!!
Finally.. I have reached this point.. all out of frustrations.. 🙂
They.. still point the finger at me… again
I started this from December 2009(last 6 months was awesome)
Magic.. Magic..
Ever wonder how files are identified correctly as jpeg, gif or even class file for that matter by the OS.
Its all magic.. 🙂
Magic numbers are those which are prefixed at the start of the file in ASCII code to identify the file format.
Some of the common magic numbers are
Class byte code starts with hex - CAFEBABE GIF image files have 'GIF89a' (47 49 46 38 39 61) or 'GIF87a' (47 49 46 38 37 61) JPEG image files begin with FF D8 and end with FF D9 PNG image files begin with "\211 P N G \r \n 32 \n" (89 50 4E 47 0D 0A 1A 0A) ZIP files begin with 'PK' (50 4B) PDF files start with '%PDF' (25 50 44 46)
They point the finger at me.. again! 