Web Reference: Some databases will throw an error if there's concurrent ongoing SERIALIZABLE transactions, and you'll have to restart the transaction. Some DBMS provide SELECT .. FOR UPDATE , which will lock the rows retreived by select until the transaction ends. First, use SELECT FOR UPDATE to explicitly lock rows during your read, preventing concurrent modifications. Second, implement optimistic locking with a version column, incrementing it on every update and checking it hasn't changed. Feb 23, 2026 · In relational databases (like Oracle and SQL Server), if you update or delete a row in a parent table, the database must check the child table to ensure referential integrity.
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Sql Concurrency Risks Update Without Net Worth 2026: Salary, Income & Wealth Net Worth & Biography
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