query: Update a single row without any identification column
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positive_passages.text: Update a single row with t-sql
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negative_passages.text: Does MySQL overwrite a column of same value on update?
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negative_passages.text: UPDATE all column values equivalent to another tables column value based on their id
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negative_passages.text: DataTable merge without primary key column
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negative_passages.text: Is there an automatic modification time stamp type for Oracle columns?
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negative_passages.text: Switch id numbers of two rows in MySql
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negative_passages.text: remove duplicate rows in mysql table that does not contain primary key
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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?