| 摘要 |
A system includes reception of a structured query language (SQL) query to select one or more values from one or more database tables, modification of the SQL query to select identifiers of table rows including the selected values, reception of query results of the modified SQL query, the query results including the selected values and identifiers of table rows including the selected values, determination of converted values corresponding to one or more of the selected values based on the identifiers of table rows including the one or more of the selected values, and modification of the query results to substitute each of the one or more of the selected values with a corresponding substitute value.
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