SAP IDES 4.7

The best place to start learning SAP is to try out the SAP IDES, International Demonstration and Education System. Here are some of the default settings for IDES 4.7 after installation:

• Client ID: 800

• Login user/pwd: sap*/06071992

• Login user/pwd: ddic/19920706

Find the list of SAP Transaction codes

There are three ways to find out the list of SAP transaction codes:

1. SE11; TSTC table or TSTCT table.
2. SM01
3. SE93

Please refer to here.

How to change SAP default client

To change default client for SAP system, I found the following way:
In file explorer: open the instance profile, for example: D:\usr\sap\C11\SYS\profile\C11_DVEBMGS00_win2k3
add login/system_client=800.
Stop and restart the SAP system.

NOTE: directly edit the file is not sugguested by SAP, the correct way to change a parameter is to use Tools->CCMS ->Configuration->Profile Maintenance.

1. RZ10
2. Import the profiles; Utilities->Import profiles->Of active servers
   
3. Extended maintenance the profile; Change
4. Create new parameter or edit existing parameter
5. Save, activate, and restart the server.
   

References:
Some SAP parameters.
How to change SAP default client?

Copy table structure and content (data)

I just started to read the book 'Sams Teach Yourself ABAP/4® in 21 Days', the first problem I ran into is how to copy table structure and content(data) from a standard table to a z_table. I found partial of the answer here:
How can I copy a standard table to make my own z_table. Go to transaction SE11. Then there is one option to copy table. Press that button. Enter the name of the standard table and in the Target table enter Z table name and press enter.
However, that is only partial answer to the question, it only copied the table structure, but without the content-data of the table, to copy the content(data), you may need to write small ABAP program to achieve the goal:

Example:
REPORT Z_COPYTABLEDATA .
tables lfa1.
select * from lfa1.
insert ztxlfa1 from lfa1.
endselect.
write 'data copied.'.