空白

好久没写什么，对着空白的屏幕，一个字也没法敲出来。但是，我还是要坚持写些什么。今天在NTV7看到了一对父母，因为女儿患了鼻咽喉癌，为了女儿的梦想，赴了中国梦想台，希望陈奕迅可以唱女儿写的歌。这个节目是去年5月录影的，患者是唐恬恬，现场播了一首她所写的《笔记》。

我很想飞
多远都不会累
才明白爱得越深心就会越痛。。。

能写出那么好的歌词，上天却要她受如此的苦，真的太可怜了。想想自己，到底又为了妈做些什么？又能为她做些什么呢？

烦恼

到底我需要做些什么才能打破这僵局？到底怎样妈才能好转？真的觉得好无助，好没用啊~

I'm back

I read an article posted on "The Star" titled "Go East, Young Man" today. It inspired me a lot, the context is about current situation of world economy, which describing the shifting of economy dominance from west to east. I can't agree more than what he wrote. My gut tells me he must have been sharing more than this in the past. Then I found another article titled "Up close and personal with Tan Sri Lin See-Yan" about his personal life. The interesting part is he trained himself to sleep 3 to 4 hours and to spend same amount of time finish a book!!! Some of his quotes drew my attention:

“One of my best experiences is dealing with housewives. There was a run on sugar and these housewives were hoarding them. I had to explain why they don’t have to. But the moment they left, they went off to buy more sugar. We do not understand the mentality of the people and the effect our policies have on them. This is my biggest criticism of government today. They never consult those their policies would most effect. We tend to take people for granted.”

Doesn't seems like our government aware of this. Fuel price is still hiking in multiple periods.

“Just having an interest is not enough. Interest dies after a while. So in all that we do, there must be passion and confidence in your ability and discipline.

Yeah, this is the good one. I think procrastination drives me away from my passion and consistency in achieving things.

“Now that I have the time, they don’t. That’s what economics taught me. You live within constraints, or you will be a complainer all the time. It is a choice you make or a choice made for you. You can always quit and do something else.”

It's time for me to make a change now!

SAP Certified Development Associate - ABAP with SAP NetWeaver 7.0

Booking Code

• C_TAW12_70

The certification test for "SAP Certified Development Associate - ABAP with SAP NetWeaver 7.0" verifies the profound knowledge in the area of ABAP Development. This certificate proves that the candidate has a fundamental understanding within this profile and is able to apply these skills practically under supervision in a project environment.

Software

• Software components: SAP NetWeaver 7.0

Number of Questions

90

Duration

0 days

Notes

• Associate Certifications are targeting profiles with 1 - 3 years of knowledge and experience. The primary source of knowledge and skills is based on the corresponding training material.
• Please note this certification may have a different passing score from previous or different certification exams. For multiple response items there is no partial credit given.
• Please note that you are not allowed to use any reference materials during the certification test (no access to online documentation or to any SAP system). You will require Photo ID to be allowed to take the test.
• View sample Exam Questions for C_TAW12_70 by clicking here

Competency Areas

The following list helps you to identify the competency areas covered in this test. The percentage indicates the portion of the test dedicated to a particular competency area.

Competency	Importance	Way(s) to attain Topic Primary Alternative Other
Accomplish and identify solutions for defined project tasks. Based on profound knowledge and basic understanding, identified tasks can be performed during system implementation, configuration, and testing in the areas of	60%	NetWeaver Overview TAW10 NW001 SAPTEC ABAP Workbench usage TAW10 BC400, BC401 ABAP debugger program usage TAW10 BC400, BC402 ABAP types and data objects TAW10 BC400 Internal table definition and use TAW10 BC400 SQL statements incl. update strategies TAW10, TAW11 BC400, BC414 ABAP Dictionary TAW10 BC430 Unicode TAW11 BC402 Classical screens (dynpros) and selection screens TAW10 BC400 ALV Grid Control TAW11 BC405 User Interfaces (Web Dynpro) TAW12 NET310
Build solutions by independently researching valid implementation options. Based on profound understanding and deep application skills, project requirements can be transferred into solid customer solutions in	40%	Basic ABAP programs and interfaces creation TAW10 BC400, BC402 Class identification analysis and design TAW12 BC401 Enhancement and Modifications TAW12 BC425, BC427 Table relationships TAW10 BC430

(extracted from SAP)

SAP ABAP : Structure, Internal Table, Transparent Table

These confused me a lot. Finally, I wrote something to clear my doubts.

* Transparent Table: SAPLANE
* Internal Table: TY_PLANETYPES
* Structure: Z07_SAPLANE

*Possible ways of typing data object with structure, trans. table and internal table.

TABLES: SAPLANE. "=> Equivalent to DATA: SAPLANE TYPE SAPLANE. [Structure of SAPLANE with the name of SAPLANE]

DATA: t_1 TYPE SAPLANE, "=> Structure of SAPLANE.
t_2 TYPE LINE OF TY_PLANETYPES, "=> Structure of TY_PLANETYPES
t_3 TYPE TY_PLANETYPES, "=> Internal Table of TY_PlANETYPES
t_4 TYPE TABLE OF SAPLANE, "=> Internal Table of SAPLANE
t_5 TYPE TABLE OF TY_PLANETYPES, "=> Single Column Internal Table that listing Internal Table of TY_PLANETYPES.
t_9 LIKE LINE OF t_4, "=> Structure of SAPLANE.
t_10 LIKE LINE OF t_5, "=> Structure of TY_PLANETYPE.
t_12 TYPE TABLE OF SAPLANE WITH HEADER LINE, "=> t_12 is both a Structure and Internal Table. This is obsolete and please avoid using this. SAP OOP prohibited this syntax.
t_13 LIKE LINE OF t_12, "=> ABAP refer t_12 as Internal Table, and form a structure of SAPLANE.
t_14 TYPE Z07_SAPLANE, "=> Structure of Z07_SAPLANE
t_15 TYPE TABLE OF Z07_SAPLANE. "=> Internal Table with Z07_SAPLANE structure.

"t_6 TYPE LINE OF t_1. => SYNTAX ERROR: TYPE a data object with a data object?
"t_7 LIKE LINE OF TY_PLANETYPES. => SYNTAX ERROR: A data object must come after LIKE.
"t_8 LIKE LINE OF t_2. => SYNTAX ERROR: LINE OF a structure?
"t_11 TYPE LINE OF SAPLANE => SYNTAX ERROR: SAPLANE is not internal table. Can't use LINE OF.

Phew! Hopefully these covers everything.

SAP ABAP: Data Type Categories

I have no idea why this topic caused that much of problems to me, this is a basic topic and I shouldn't have much troubles with it. But somehow, I spent a very long time to understand it, may be that's the way to master the basic? Or I did it in stupid way? Who knows? Anyway, by hook or by crook, I have to get it clear in my mind.

ABAP has 3 categories of Data Types:

1. Predefined Data Type / ABAP Standard Type / ABAP Type:
• Complete ABAP standard types (Doesn't need to specify length)
  
1. D - Date, YYYYMMDD, length 8 bytes, fixed.
2. T - Time, HHMMSS, length 6 bytes, fixed.
3. I - Integer, lenght 4 bytes, fixed.
• = 32 bits = 10 digits and 1 +/- sign, MinMax value is +- 2,147,483,647.
4. F - Floating point number (F), 8 bytes.
• For scientific calculation purpose, it provides approximate value with rounding error.
  
• should avoid using this for any business calculation.
5. STRING - dynamic length character string.
6. XSTRING - dynamic length byte sequence (HeXadecimal String).
   
• Incomplete ABAP standard types (Length must be specified for the data objects)
  
1. C - Character string
   
2. N - Numerical Character
• This guy is odd, he is character that detects and accepts only numeric (0-9) value from Left Hand Side. Pattern King!
  
3. X - Byte Sequence (HeXadecimal String)
   
4. P - Packed Number
• This guy won't mess up with any rounding errors, because it's using fixed point arithmetic.
  
• Use it for any business calculation.
  
• But you have to specify the length and decimals for it.
• Valid Length is from 1 to 16.
• Valid Decimals ranged from 0 to 14. (Zero-decimals will convert it behave like Integral [auto round up and down])
  
2. Local Type
• Apparently, you define and declare the Data Type, and use it to type data objects within the program.
  
3. Global Type
• Obviously, you define your Data Type in ABAP Dictionary, and it can be used throughout the entire SAP system.

How you define Data Objects?
DATA: dataObject TYPE data type.

Example 1 with predefined data type:

DATA: lv_dataObjTYPE P LENGTH 5 DECIMALS 2.

Example 2 with local type:
Within your program,

TYPES: abc TYPE P LENGTH 5 DECIMALS 2.

DATA: lv_dataObj TYPE abc.

Example 3 with global type:
Go to ABAP Dictionary: Initial Screen with command SE11 and define your data type, for e.g. def.
In your program,

DATA: lv_dataObj TYPE def.

Please feel free to drop your comments!

Bye Bye~ Kok Chye... May you rest in peace...

You were such a good friend. I wouldn't forget how you smiled and laughed with us in those days. Kok Chye, may you rest in peace...