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BC430_COMP_AND_FILL - Copy Comparison of Table Structures and Data

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Functionality

Compares two tables. This function module is part of the course software for the training course BC430 (ABAP Dictionary).

A table, T_TAB is compared to a model table. The table T_TAB is compatible with M_TAB, if there is a matching field in T_TAB (same key ID, same data type, length, and number of decimal places) for every field in M_TAB. If a combination of key ID, data type, length, and number of decimal places occurs n times in M_TAB, T_TAB must also contain at least n such fields. If the tables are compatible, the fields in M_TAB are assigned to the fields in T_TAB and the data from M_TAB can be copied to the corresponding fields in T_TAB. No error occurs if T_TAB contains additional fields; these fields simply remain initial after the copying has taken place.

The following comments pertain to using the function module within the training course BC430.

Input parameters:

• M_TAB: Name of the predefined table.

• T_TAB: Name of the participant's table.

• FILL: Indicates whether or not the data from M_TAB should be transported to T_TAB.

Exceptions:

T_TAB_NOT_EXIST: The participant's table is not available.

T_TAB_NOT_ACTIVE: The participant's table is not active.

M_TAB_NOT_ACTIVE: Model table is not active. This indicates that the environment used for the exercises has not been set up correctly.

SYSTEM_INCONSISTENT: Error in the Dictionary interfaces (DDIF_TABL_GET). This exception should never occur.

Results in the ERRORS table:

Theresults of the comparison are written to the ERRORS table. If ERRORS remains blank, the participant's table is compatible. Otherwise, the name of the participant's table is stored in ERRORS-TABNAME; the cause of the error is stored in ERRORS-ERROR:

KEY_TOO_SMALL: T_TAB has fewer key fields than M_TAB.

KEY_TOO_BIG: T_TAB has more key fields than M_TAB.

FIELD: At least one of the fields in the table M_TAB has no corresponding field in the table M_TAB. The name of this field is stored in ERRORS-FIELDNAME.

KEY: A key field in the table M_TAB has no corresponding field in the table T_TAB. The name of this field is stored in ERRORS-FIELDNAME.

Notes

This function module can only be used for training purposes.

Further information

Documentation on the Report BC430_CHECK.

Parameters

ERRORS
FILL
M_TAB
T_TAB

Exceptions

M_TAB_NOT_ACTIVE
SYSTEM_INCONSISTENT
T_TAB_NOT_ACTIVE
T_TAB_NOT_EXIST

Function Group

BC430

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