form data source by join

8/3/2019 Form Data Source by Join

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8. Locking Mode: Delayed9. Key Mode: Updateable

10. DML Data Target Name: hr.employees, hr.departments

11. Show Scroll Bar: yes12. Scroll Bar Canvas: EMP_DEPT

13. Scroll Bar X Position: 50014. Scroll Bar Y Position: 42

15. Scroll Bar Width: 14

16. Scroll Bar Height: 140 Note: Key Mode = Updatable instructs Forms to perform any DML statements using the Primary Key values.

6. Add the following Block Items and set their properties as indicated:1. Name: Employee_id

i. Data Type: Numberii. Maximum Length: 6iii. Column Name: hr.employees.employee_idiv. Primary Key: Yesv. Prompt: Employee IDvi. Prompt Attachment Edge: Topvii. Prompt Alignment: Center

2. Name: First_namei. Date Type: Charii. Data Length Semantics: Byte

iii. Maximum Length: 20iv. Column Name: hr.employees.first_namev. Prompt: First Namevi. Prompt Attachment Edge: Topvii. Prompt Alignment: Center

3. Name: Last_namei. Data Type: Charii. Data Length Semantics: Byte


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iii. Maximum Length: 20iv. Column Name: hr.employees.last_namev. Prompt: Last Name

vi. Prompt Attachment Edge: Topvii. Prompt Alignment: Center

4. Name: Job_idi. Data Type: Charii. Data Length Semantics: Byteiii. Maximum Length: 20iv. Column Name: hr.employees.job_idv. Prompt: Job IDvi. Prompt Attachment Edge: Topvii. Prompt Alignment: Center

5. Name: Manager_idi. Data Type: Numberii. Maximum Length: 6iii. Column Name: hr.employees.employee_idiv. Prompt: Manager IDv. Prompt Attachment Edge: Topvi. Prompt Alignment: Center

6. Name: Salaryi. Data Type: Numberii. Maximum Length: 11

iii. Column Name: hr.employees.salaryiv. Prompt: Salaryv. Prompt Attachment Edge: Topvi. Prompt Alignment: Center

7. Name: Department_namei. Data Type: Charii. Data Length Semantics: Byteiii. Maximum Length: 30


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iv. Column Name: hr.departments.department_namev. Prompt Name: Department Namevi. Prompt Attachment Edge: Top

vii. Prompt Alignment: Center7. Add the items to a Canvas using the Layout Wizard.

i. Select EMP_DEPT_JOIN as the data blockii. Select all available fieldsiii. Select Tabular layoutiv. Enter Employee Information as the Frame Titlev. Set number of record displayed = 10vi. Check the Display Scrollbar optionvii. Click Finish

8. At this point you should have a form that look similar to the following:


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9. Now run your form and press Ctrl + F11 to query data into the EMP_DEPT_JOIN block. Your Forms Runtime

should look like the following:


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Youre done! You have successfully based a Forms Data Block on two tables by joining them through the WHEREClause of the data block.

How many tables you join in your block is up to you. I have successfully joined 6 tables. The advantage of joining tables


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in your block is that the result set is faster than the traditional block based on the primary table and using a Post-Querytrigger to display the relevant data from the joined tables.

form data source by join

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