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Have you ever explicitly set the isolation level in your code?

sobes.tech AI

Answer from AI

Yes, in Golang, when working with databases through the database/sql package, you can explicitly set the transaction isolation level to control data visibility and prevent concurrency issues.

To do this, when starting a transaction, use sql.TxOptions, where you can specify the Isolation field with the desired level, for example:

import (
    "database/sql"
    "context"
)

func startTx(db *sql.DB) (*sql.Tx, error) {
    opts := &sql.TxOptions{
        Isolation: sql.LevelSerializable, // the strictest isolation level
        ReadOnly:  false,
    }
    return db.BeginTx(context.Background(), opts)
}

Isolation levels in Go correspond to standard SQL levels: LevelDefault, LevelReadUncommitted, LevelReadCommitted, LevelRepeatableRead, LevelSerializable.

I use explicit setting of the isolation level when I need to guarantee data consistency during parallel transactions, for example, in complex financial operations.

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