How do I get unique values in Crystal Reports?

How do I get unique values in Crystal Reports?

1 Answer

  1. use a command as a datasource select distinct year from yourtable.
  2. check Database | Select Distinct Records in the menu for the subreport.

How do I eliminate duplicate values?

Remove duplicate values

  1. Select the range of cells that has duplicate values you want to remove. Tip: Remove any outlines or subtotals from your data before trying to remove duplicates.
  2. Click Data > Remove Duplicates, and then Under Columns, check or uncheck the columns where you want to remove the duplicates.
  3. Click OK.

How do you find duplicates in Crystal Reports?

Crystal Reports – Filter duplicates by field

  1. Open the report and select the ‘Preview’ tab.
  2. Note the duplicate rows – ‘Robyn’ is listed twice.
  3. Open the ‘Report’ menu then select ‘Section Expert’
  4. Select the ‘Details’ section from the left hand menu.

Which transformation is used to remove duplicate values?

The sorter transformation requires some data to remove the duplicates. So, we have to connect the Source definition with the transformation using the Autolink..

How do I remove duplicate columns from a data frame?

To drop duplicate columns from pandas DataFrame use df. T. drop_duplicates(). T , this removes all columns that have the same data regardless of column names.

What is a correct method to remove duplicates from a Pandas DataFrame?

Pandas drop_duplicates() method helps in removing duplicates from the data frame.

  1. Syntax: DataFrame.drop_duplicates(subset=None, keep=’first’, inplace=False)
  2. Parameters:
  3. subset: Subset takes a column or list of column label. It’s default value is none.
  4. keep: keep is to control how to consider duplicate value.

How do you remove duplicate records in Informatica If the source is DBMS?

Use AGG Transformation and group by the keys that u want to remove dup. To improve speed, sorted ports can be used for presorted data. Make sure the first row listed in the order by clause in source qualifier is the same as the Group By port in the Aggregator.

How can we delete duplicate records using aggregator?

Aggregator Transformation – To remove the duplicate records just Group By the port JOB_ID which will group all unique records together and pass it to target. Enable Sorted Input to improve the performance of Aggregator Transformation.

How do you identify duplicate columns in a data frame?

Find duplicate columns in a DataFrame

  1. ”’
  2. It will iterate over all the columns in dataframe and find the columns whose contents are duplicate.
  3. :return: List of columns whose contents are duplicates.
  4. duplicateColumnNames = set()
  5. for x in range(df.
  6. col = df.iloc[:, x]
  7. for y in range(x + 1, df.
  8. otherCol = df.iloc[:, y]

How do you find duplicates in a column in a data frame?

To find duplicates on a specific column, we can simply call duplicated() method on the column. The result is a boolean Series with the value True denoting duplicate. In other words, the value True means the entry is identical to a previous one.

How do I get rid of duplicate rows in pandas?

Consider dataset containing ramen rating. By default, it removes duplicate rows based on all columns. To remove duplicates on specific column(s), use subset . To remove duplicates and keep last occurrences, use keep .

How do I separate unique and duplicate records in Informatica?

There are several ways to remove duplicates.

  1. If the source is DBMS, you can use the property in Source Qualifier to select the distinct records.
  2. You can use, Aggregator and select all the ports as key to get the distinct values.
  3. You can use Sorter and use the Sort Distinct Property to get the distinct values.

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