query: Why is dropping a primary key expensive?
positive_passages.docid: 151820
positive_passages.text: What happens when you delete a Clustered index and Non Clustered Index once created
negative_passages.docid: 91860
negative_passages.text: Error 1022 - Can't write; duplicate key in table
negative_passages.docid: 133877
negative_passages.text: How to Identify the primary key duplication from a SQL Server 2008 error code?
negative_passages.docid: 59729
negative_passages.text: What is the purpose of the database 'owner'?
negative_passages.docid: 100207
negative_passages.text: Need to create a combination of fields to be the primary key to determine price for a product
negative_passages.docid: 154456
negative_passages.text: Use email address as primary key?
negative_passages.docid: 6469
negative_passages.text: How costly is opening and closing of a DB connection?
negative_passages.docid: 67443
negative_passages.text: How to prevent duplicate records being inserted with SqlBulkCopy when there is no primary key
negative_passages.docid: 105896
negative_passages.text: Finding a Primary Key Constraint on the fly in SQL Server 2005
negative_passages.docid: 39396
negative_passages.text: Breaking a small-scale Example Diffie-Hellman?
negative_passages.docid: 64024
negative_passages.text: Strings as Primary Keys in SQL Database
negative_passages.docid: 1214
negative_passages.text: Key uses weak digest algorithm
negative_passages.docid: 82390
negative_passages.text: Mysql int vs varchar as primary key (InnoDB Storage Engine?
negative_passages.docid: 59139
negative_passages.text: Remove Primary Key in MySQL
negative_passages.docid: 116239
negative_passages.text: Does SQL Server Offer Anything Like MySQL's ON DUPLICATE KEY UPDATE
negative_passages.docid: 151924
negative_passages.text: Error 1062 - Duplicate entry '127' for key 'PRIMARY' - can't find the reason
negative_passages.docid: 58229
negative_passages.text: Is a table without a primary key normalized?