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What about the primary key conflict when inserting data in bulk in the database?

2025-01-17 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Database >

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Editor to share with you how to do the primary key conflict when inserting data in bulk in the database. I hope you will get something after reading this article. Let's discuss it together.

Customers have such a need: there is a large table A with a primary key, and it is often necessary to insert a large amount of data into this table in bulk, but the inserted data may repeat itself or repeat with Table A.

Here are several ways to test the insertion:

DB:ORACLE 11.2.0.4

Create a new test table:

Create a new table scott.tb_01

Create table scott.tb_01

As

SELECT level c1,level c2,level c3

FROM DUAL

CONNECT BY LEVEL

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