InterviewSolution
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What Is Place Holder Columns? |
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Answer» A PLACEHOLDER is a COLUMN is an empty container at design TIME. The placeholder can hold a value at run time has been calculated and placed in to It by pl/sql code from another object. You can set the value of a placeholder column is in a Before Report trigger. Store a Temporary value for FUTURE reference. EX. Store the current max salary as records are RETRIEVED. A placeholder is a column is an empty container at design time. The placeholder can hold a value at run time has been calculated and placed in to It by pl/sql code from another object. You can set the value of a placeholder column is in a Before Report trigger. Store a Temporary value for future reference. EX. Store the current max salary as records are retrieved. |
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