Torgeek
- How do I prevent duplicates in SQL insert?
- How do I insert only unique values in SQL?
- How do I exclude duplicates in SQL?
How do I prevent duplicates in SQL insert?
Use the INSERT IGNORE command rather than the INSERT command. If a record doesn't duplicate an existing record, then MySQL inserts it as usual. If the record is a duplicate, then the IGNORE keyword tells MySQL to discard it silently without generating an error.
How do I insert only unique values in SQL?
You use the "DISTINCT" keyword to only copy over distinct organizations. The above output shows that only 1287 records are inserted into the "organizations" table. On the other hand, if you use "INSERT INTO SELECT", without the "DISTINCT" keyword, duplicate records would be copied over as well.
How do I exclude duplicates in SQL?
The SQL DISTINCT keyword, which we have already discussed is used in conjunction with the SELECT statement to eliminate all the duplicate records and by fetching only the unique records.
