1.Create foreign key ZEMPLOY##-Client as follows:

a)Place the cursor on the Client field in ZEMPLOY##. Choose Goto

→ Foreign key.

Since you are using domain CLIENT for the Client field in ZEMPLOY##, the system proposes value table T000 as check table.

b) Have the system make a proposal for the foreign key definition. Check the proposal. The following fields must be assigned:

Check table T000

c) Enter a short text and define the semantic attributes as follows:

d) Save your foreign key.

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2.Create foreign key ZEMPLOY##-Carrier.

Note: Since you are using domain S_CARR_ID for the Carrier field in ZEMPLOY##, you can use value table SCARR for the foreign key definition.

a) Place the cursor on the Carrier field. Choose Goto → Foreign key.

b) Have the system make a proposal for the foreign key definition. Check the proposal. The following fields must be assigned:

Check table SCARR

c) Enter a short text and determine the semantic attributes as follows:

d) Save your foreign key.

3. Create the foreign key ZEMPLOY##-Department code as follows:

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Enter the value table ZDEPMENT## in the domain for the Department code field and activate the domain.

Note: To get a proposal for the foreign key definition, you must change the domain for the Department code field in ZEMPLOY##. This is not absolutely necessary for later foreign key definitions, but makes the definition easier.

a)First of all, place the cursor on the Department code field in ZEMPLOY##. Choose Goto → Foreign key.

Note: Since you are using the domain of

ZDEPMENT##-Department code field for the

ZEMPLOY##-Department code field, you can use value table

ZDEPMENT## for the foreign key definition.

b) Have the system make a proposal for the foreign key definition. Check the proposal. The following fields must be assigned:

Check table ZDEPMENT##

c) Enter a short text and determine the semantic attributes as follows:

d) Save your foreign key.

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4.Create the foreign key ZEMPLOY##-Currency as follows:

Note: Since you are using domain S_CURR for field ZEMPLOY##-Currency, you can use value table SCURX for the foreign key definition.

a) Place the cursor on field ZEMPLOY##-Currency. Choose Goto → Foreign key.

b) Have the system make a proposal for the foreign key definition. Check

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7.Create foreign key ZFLCREW##-Employee number.

a)Place the cursor on the Employee number field in ZFLCREW##. Choose Goto → Foreign key.

Note: The check table is the ZEMPLOY## table. If you have stored this as value table in the domain for the employee number, a corresponding proposal is created. If not, you have to enter it yourself.

b) Copy the system proposal for the field assignment.

c) Enter a short text and determine the semantic attributes as follows:

d) Save your foreign key.

8. Maintain the data for table ZEMPLOY## and test the effect of your foreign key relationships.

a) In the maintenance screen of the ZEMPLOY## table, select Utilities → Table Content → Create entries.

b) Enter data and check whether your foreign key functions correctly using the F4 help.

Task 3:

Some employees of airline carriers work in travel agencies in order to sell flights for their companies there. Enhance table ZEMPLOY## with a field that documents the travel agency where each employee works.

Enhance table ZEMPLOY## accordingly and define the foreign key relationship.

Hint: The table of all travel agencies is called STRAVELAG.

1.Create a new field Agency in your table ZEMPLOY##.

a)Navigate to the field maintenance screen for table ZEMPLOY##. Insert a new field Agency in the field list (select New rows).

Note: In the maintenance screen for table STRAVELAG you can see that the suitable data element is called S_AGNCYNUM.

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