Storage Parameters in a Local Managed Tablespace

Storage_Clause:

INITIAL
Specify in bytes the size of the object’s first extent. Oracle allocates space for this extent when you create the schema object. Use K or M to specify this size in kilobytes or megabytes.
The default value is the size of 5 data blocks. In tablespaces with manual segment-space management, the minimum value is the size [...]

Common Problems

Some silly problems may incur everyday:

Wrong spelling. ex. “contraint” -> “constraint”
Missing parenthesis
Make sure all the commands in the scripts have the right path, for example, the RMAN case
Correct shell choice

SQL Statements used in Oracle DBA Books

Please see this file.
Reference:
1. http://forums.oracle.com/forums/thread.jspa?messageID=923473