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๐ก ๐ง๐ถ๐ฝ ๐ผ๐ณ ๐๐ต๐ฒ ๐๐ฎ๐ โ ๐๐ท๐ฎ๐ป๐ด๐ผ
๐๐ถ๐ฑ ๐๐ผ๐ ๐ธ๐ป๐ผ๐?
Djangoโs "select_for_update()" lets you ๐น๐ผ๐ฐ๐ธ ๐ฟ๐ผ๐๐ ๐ถ๐ป ๐๐ต๐ฒ ๐ฑ๐ฎ๐๐ฎ๐ฏ๐ฎ๐๐ฒ ๐ฑ๐๐ฟ๐ถ๐ป๐ด ๐ฎ ๐๐ฟ๐ฎ๐ป๐๐ฎ๐ฐ๐๐ถ๐ผ๐ป.
This prevents other transactions from modifying the same rows until your transaction is complete.
๐ง ๐จ๐๐ฒ ๐ถ๐ ๐ณ๐ผ๐ฟ:
- Financial operations (e.g., updating balances)
- Inventory systems
- Any critical section where race conditions must be avoided
๐๐บ๐ฝ๐ผ๐ฟ๐๐ฎ๐ป๐:
It only works inside a database transaction ("atomic" block).
Safer concurrency = fewer data integrity issues.
#WebDevelopment #DatabaseDesign #FullstackDeveloper
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