DATATYPE field has small influence on the way the column is displayed. You can omit this field and then ALV grid will automatically fill this field and additionally JUST, OUTPUTLEN, INTTYPE, INTLEN and DD_OUTLEN on a base of the type of the output table field.
But if you decide to fill it, then on a base of DATATYPE you’ll notice different justification or output length. But still all checks of the data entered in edit mode will be done on a base of the real data type of the linked internal table field.
Possible data types form system NW 7.52 SP04 can be found bellow.
|
Data Type |
Short Description |
|
ACCP |
Posting Period YYYYMM |
|
CHAR |
Character String |
|
CLNT |
Client |
|
CUKY |
Currency Key for Currency Field |
|
CURR |
Currency Field in BCD Format |
|
DF16_DEC |
Decimal Floating Point Stored in BCD Format |
|
DF16_RAW |
Decimal Floating Point Stored as Binary Number |
|
DF16_SCL |
Decimal Floating Point with Scaling (obsolete) |
|
DF34_DEC |
Decimal Floating Point Stored in BCD Format |
|
DF34_RAW |
Decimal Floating Point Stored as Binary Number |
|
DF34_SCL |
Decimal Floating Point with Scaling (obsolete) |
|
DATS |
Date in Format YYYYMMDD |
|
DEC |
Packed Number in BCD Format |
|
FLTP |
Floating Point Number |
|
INT1 |
1-Byte Integer, 0 to 255 |
|
INT2 |
2-Byte Integer, -32.768 to 32.767 |
|
INT4 |
4-Byte Integer, -2.147.483.648 to +2.147.483.647 |
|
INT8 |
8-Byte Integer |
|
LANG |
Language key |
|
LCHR |
Long Character String |
|
LRAW |
Long Byte String |
|
NUMC |
Numerical Text |
|
PREC |
Obsolete Data Type |
|
QUAN |
Quantity Field in BCD Format |
|
RAW |
Byte Sequence |
|
RAWSTRING |
Byte String (BLOB) |
|
SSTRING |
Character String |
|
STRING |
Character String (CLOB) |
|
TIMS |
Time in Format HHMMSS |
|
UNIT |
Unit Key of Quantity Field |
|
VARC |
Obsolete Data Type |
Table 2 Possible data types in NW 7.52 SP04
In the sample program, you can play with the settings of this field, but as mention before, the noticed changes will not be that easily visible.
For example, if you use TIMS data type, you’ll noticed that the length of the columns CONNID, FLTIME and DEPTIME is set to 8, additionally justification is set to L (columns 2, 8,9)
Figure 90 ZDEMO_AIN_CL36 Selection screen with data type
Figure 91 ZDEMO_AIN_CL36 Result of report with TIMS data type
I’ve tried to enter data in TIME format into field CONNID, but as stated before, the check of the input data is done on a base of the type of internal table field. That is why I’ve received an error that entry is not numeric.
Figure 92 ZDEMO_AIN_CL36 Error after entering time format value into NUMC field
