Profiler Object:Column-Based Value Frequency Table Iteration: Difference between revisions
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Revision as of 18:53, 2 February 2015
These functions allow you to step through each distinct value for a specific column.
StartDataFrequency
This function initiates the iterator.
This function takes two parameters.
Parameters
| Name | Data Type | Description |
|---|---|---|
| ColumnName | String | Column Name to start the iterator. |
| Order | Order | This specifies how to order. See Order Enumeration for details. |
| Syntax | profiler->StartDataFrequency(columnNameStr, Order); |
|---|---|
| C | mdProfilerStartDataFrequency(profiler,columnNameStr, Order); |
| .Net | profiler.StartDataFrequency(columnNameStr, Order); |
GetDataFrequencyValue
This function returns a column's distinct value.
This function takes one parameter.
Parameters
| Name | Data Type | Description |
|---|---|---|
| ColumnName | String | Column Name to get the column’s distinct value. |
| Syntax | profiler->GetDataFrequencyValue(columnNameStr); |
|---|---|
| C | string = mdProfilerGetDataFrequencyValue(profiler,columnNameStr); |
| .Net | string = profiler.GetDataFrequencyValue(columnNameStr); |
GetDataFrequencyCount
This function returns the number of times the value appeared in the profiled data for this particular column.
This function takes one parameter.
Parameters
| Name | Data Type | Description |
|---|---|---|
| ColumnName | String | Column Name to get the number of times the value appeared in the profiled data. |
| Syntax | profiler->GetDataFrequencyCount(columnNameStr); |
|---|---|
| C | integer = mdProfilerGetDataFrequencyCount(profiler,columnNameStr); |
| .Net | integer = profiler.GetDataFrequencyCount(columnNameStr); |
GetNextDataFrequency
This function steps to the next distinct value. It returns 1 if there are more distinct values and 0 when there are no more values.
This function takes one parameter.
Parameters
| Name | Data Type | Description |
|---|---|---|
| ColumnName | String | Column Name to get the next distinct value. |
| Syntax | profiler->GetNextDataFrequency(columnNameStr); |
|---|---|
| C | integer = mdProfilerGetNextDataFrequency(profiler,columnNameStr); |
| .Net | integer = profiler.GetNextDataFrequency(columnNameStr); |