Oracle Reports | How To Develop a report using placeholder column | Bangla R-13
Oracle Reports | How To Develop a report using placeholder column | Bangla R-13
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Dear viewer, In this tutorial you will know learn Oracle Reports-How To Develop a report using placeholder column.
Placeholder column:
A placeholder column is an empty container at design time. The placeholder can hold a value at run time that has been calculated and placed into it by PL/SQL code from another object.
Using placeholder columns, you can:
Populate multiple columns from one piece of code. You can calculate several values in one block of PL/SQL code in a formula column and assign each value to a different placeholder column. Thus, you create and maintain only one program unit instead of many.
Store a temporary value for future reference. For example, store the current maximum salary as records are retrieved.
Placeholder column:
Questions:
Maximum salary.
Who is the maximum salary earner ?
What is his/her department name?
What is his/her department id?
What is his/her city name?
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