Easy to Remember - SAP Transaction Codes

SPRO    DEFINE ITEM CATEGORY    
MM01    CREATE MATERIAL 
MM02    MODIFY MATERIAL 
MM03    DISPLAY MATERIAL        
MMS1    CREATE MATERIAL MASTER  
MMS2    CHANGE MATERIAL MASTER  
MMS3    DISPLAY MATERIAL MASTER 
MB1C    MAINTAIN STOCK  

List of SAP Transaction Codes

Where I can find the list of transaction codes and their usage, I heard that there is some table which contains all the transaction codes with their descriptions.

Does anyone know about the Table that consist all the T-Code?

Listed here are the various ways you can find the list of transaction codes and their usage:

Use transaction SE11 - ABAP Dictionary:

Fill in the Database table name and click the Display button.
- TSTC   table will contain all the Tcodes and
- TSTCT table will contain all the Tcodes with Texts.

Once you entered the screen, click in Top Menu - Utilities - Table contents - Display

If you want to display all the transaction code (total - 57,048) you have to change the Fields: Maximum number of hits to 99999 (default 500).

or

Simply goto transaction SM01, although this tcode is to Lock/Unlock any transaction code, you can also view all the tcode available in the R/3 system from here.

or

Goto transaction SE93

There are two ways where you can find the list of transaction codes in SE93.

Method 1:
You must be familiar with the starting characters strings for each of the R/3 application modules.

Assuming you know that most Materials Management transaction codes start with MM.

In the Fields: Transaction code, type in MM* and press the function key F4

The list of transaction code starting with MM will be displayed.