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BCP Corrupts Table Index by Inserting Duplicate Rows

by:Chairlady     2020-07-06
BCP is the SQL Server utility that you can use to copy bulk data coming from a data file and tyoe of MS SQL Server. You may also use it to import/export data in/from SQL Server tables. But sometimes anyone perform a bulk copy operation, it corrupts index pages of unique nonclustered index. It occurs when this operation results into duplicate rows insertion into a table. In such situations, you might receive a mistake message that the table is corrupt. Thus, to restore the missing information, you can utilize your last backup. It might possibly occur that you don't have such backup that could give required results. To cope up such problems, you should use powerful SQL recovery software program program. When you run DBCC CHECKTABLE command to check SQL table consistency, you probably receive below errors: Server: Msg 8951, Level 16, State 1, Line 0 Table Corrupt: Table 'table_name' (ID 1797581442). Missing or invalid key in index 'IDX_2' (ID 2) for the row: Server: Msg 8955, Level 16, State 1, Line 0 Data row (1:97:0) recognized by (RID = (1:97:0) ) has index values (Col1 = 1 and Col2 = 1 and Col3 = 12 and Col4 = Sep 30 2000 12:00AM!t~0WeG). Cause The most probable involving such error messages to happen is will need used bulk copy operation that has corrupted index pages of unique no clustered checklist. It occurs when bulk copy operation or DTS (Data Transformation Services) import package inserts duplicate rows in table, when any within the following condition exists: The input file tend to be using contains duplicate rows The table to be targeted doesn't contain any clustered index and includes unique no clustered index that has been produced with ignore_dup_key option You have turned on their own Select Into/Bulk Copy option Solution Apply such methods to repair such issues: You should clean the prospective table by dropping no clustered pointer. You can then remove the duplicate rows and recreate the unique no clustered index If problem persists, you can use commercial also.SQL Repair software to repair and restore table contents. Since using DBCC CHECKTABLE command with repair option cannot correct this issue, using SQL Recovery software is the only way lefts. Stellar Phoenix SQL Recovery is if you're a tool to correct and restore damage SQL databases along with its components. It supports safe SQL Repair for SQL Server 2008, 2005 and 2000. It can restore database tables, triggers, stored procedures, views, rules and other database material. It is compatible with Windows Vista, XP, 2003, 2000 and NT.
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