query: Avoid duplicate data on SQL Server
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positive_passages.text: Simulating group_concat MySQL function in Microsoft SQL Server 2005?
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negative_passages.text: How to avoid multiple insert in PostgreSQL
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negative_passages.text: How do you copy a record in a SQL table but swap out the unique id of the new row?
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negative_passages.text: What is the most efficient way to concatenate strings in SQL Server?
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negative_passages.text: How to merge two databases, with same data, but with different PKs, without duplicated fields?
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negative_passages.text: SQL Server database design for "archived but available" data
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negative_passages.text: Deleting duplicate rows with condition(Using SQL and LINQ)
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negative_passages.text: SQL query that concatenates values from duplicate rows in a single table
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negative_passages.text: Find duplicate records in MySQL
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negative_passages.text: How to debug the mysterious "duplicate value found:  duplicates value on record with id: " error
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negative_passages.text: How to Select records that don't exist in Sql Server
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negative_passages.text: Removing duplicate rows from table in Oracle
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negative_passages.text: insert single set of data multiple times mysql
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negative_passages.text: SQL Insert Statement Persists Two Records When I Need Just One
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negative_passages.text: How to delete duplicate records
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negative_passages.text: Delete Duplicate Rows?
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negative_passages.text: Creating duplicate features based on many-to-one conversion of related table?