SELECT FOR UPDATE in SQL: How Row Locking Works - CockroachDB
Jan 15, 2026 · What is SELECT FOR UPDATE in SQL? SELECT FOR UPDATE is a SQL command that’s useful in the context of transactional workloads. It allows you to “lock” the rows returned by a …
SELECT FOR UPDATE with SQL Server - Stack Overflow
As a workaround you can try to do a simple update on this row first (without really changing any data). After that you can proceed with the row like in was selected for update.
Understanding the "SELECT FOR UPDATE" SQL Statement
Jun 6, 2024 · What is "SELECT FOR UPDATE"? SELECT FOR UPDATE is a clause in SQL that is appended to a SELECT statement. It locks the selected rows, preventing other transactions from …
The Mechanics of SELECT FOR UPDATE in SQL | by Leapcell | Medium
Apr 7, 2025 · SELECT FOR UPDATE is a row-level locking mechanism in SQL used to lock the rows retrieved in a transaction. Its purpose is to prevent other transactions from modifying or acquiring …
Sql: select for update - Microsoft Q&A
Mar 11, 2022 · For maximum interoperability, applications should generate result sets that will be updated with a positioned update statement by executing a SELECT FOR UPDATE statement. …
How to UPDATE from a SELECT statement in SQL Server
This article mentions how to perform an update from a select statement with different methods
Oracle / PLSQL: SELECT FOR UPDATE Statement - TechOnTheNet
This Oracle tutorial explains how to use the Oracle / PLSQL SELECT FOR UPDATE statement with syntax and examples. The SELECT FOR UPDATE statement allows you to lock the records in the …
How to UPDATE from a SELECT in SQL Server: Complete Guide with …
Jan 16, 2026 · This guide will walk you through all methods to update a table from a SELECT in SQL Server, including practical examples, best practices, and troubleshooting tips.
MySQL :: MySQL 8.4 Reference Manual :: 17.7.2.4 Locking Reads
FOR UPDATE requires the SELECT privilege and at least one of the DELETE, LOCK TABLES, or UPDATE privileges. These clauses are primarily useful when dealing with tree-structured or graph …
PostgreSQL: Documentation: 18: SELECT
May 14, 2026 · If FOR UPDATE, FOR NO KEY UPDATE, FOR SHARE or FOR KEY SHARE is specified, the SELECT statement locks the selected rows against concurrent updates. (See The …