Profiler Object:Column-Based Value Frequency Table Iteration: Difference between revisions
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[[Profiler Object:Reference|← Profiler Object Reference]] | [[Profiler Object:Reference|← Profiler Object Reference]] | ||
{ | {{ProfilerObjectNav | ||
|IteratorsCollapse= | |||
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==StartDataFrequency== | ==StartDataFrequency== | ||
This function initiates the iterator. | This function initiates the iterator. It returns 1 to indicate if there are records to iterate through. Otherwise it returns 0. | ||
This function takes two parameters. | This function takes two parameters. | ||
| Line 102: | Line 27: | ||
{{Object Syntax | {{Object Syntax | ||
|Syntax=profiler->StartDataFrequency(columnNameStr, Order); | |Syntax=int = profiler->StartDataFrequency(columnNameStr, Order); | ||
|C=mdProfilerStartDataFrequency(profiler,columnNameStr, Order); | |C=int = mdProfilerStartDataFrequency(profiler,columnNameStr, Order); | ||
|.Net=profiler.StartDataFrequency(columnNameStr, Order); | |.Net=integer = profiler.StartDataFrequency(columnNameStr, Order); | ||
}} | }} | ||
| Line 121: | Line 46: | ||
{{Object Syntax | {{Object Syntax | ||
|Syntax=profiler->GetDataFrequencyValue(columnNameStr); | |Syntax=profiler->GetDataFrequencyValue(columnNameStr); | ||
|C= | |C=const char* = mdProfilerGetDataFrequencyValue(profiler,columnNameStr); | ||
|.Net=string = profiler.GetDataFrequencyValue(columnNameStr); | |.Net=string = profiler.GetDataFrequencyValue(columnNameStr); | ||
}} | }} | ||
Latest revision as of 16:21, 15 May 2015
These functions allow you to step through each distinct value for a specific column.
StartDataFrequency
This function initiates the iterator. It returns 1 to indicate if there are records to iterate through. Otherwise it returns 0.
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 | int = profiler->StartDataFrequency(columnNameStr, Order); |
|---|---|
| C | int = mdProfilerStartDataFrequency(profiler,columnNameStr, Order); |
| .Net | integer = 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 | const char* = 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); |