Selecting the Silver-level customer data

Procedure

Double-click tSqlRow to open its Component view.
Click the [...] button next to Edit schema to open the schema editor.
In the schema on the output side (the right side), change the column name Support to Silver_Support.
From the SQL context drop-down list, select SQL Spark Context.
In the SQL Query field, enter the query statement to be used to select the records about the Silver-level customers.
```
select User_id, FirstName, LastName, Country, Support as Silver_Support, SubscriptionDate, email, telephone from row1 where Support = 'SILVER'
```
You can read that the input link row1 is actually taken as the table in which this query is performed.

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