3/23/2023 0 Comments Sqlite transactionTo start a transaction explicitly, you use the following steps:įirst, open a transaction by issuing the BEGIN TRANSACTION command. It means that for each command, SQLite starts, processes, and commits the transaction automatically. On the contrary, if the program crashes before the transaction is committed, the change should not persist.īy default, SQLite operates in auto-commit mode. Durable: if a transaction is successfully committed, the changes must be permanent in the database regardless of the condition such as power failure or program crash.On the other hand, the changes committed by other sessions after the transaction started should not be visible to the current session. Transactions allow several database operations to be processed in an atomic manner. When a session starts a transaction and executes the INSERT or UPDATE statement to change the data, these changes are only visible to the current session, not others. Isolation: a pending transaction performed by a session must be isolated from other sessions.However, when the transaction is committed or rolled back, it is important that the transaction must keep the database consistent. When a transaction starts and executes a statement to modify data, the database becomes inconsistent. SqliteConnection Constructor () Initializes a new instance of the SqliteConnection class. For queries, extract results by calling sqlite3 column () in between two calls to sqlite3 step (). SqliteTransaction Properties Methods Applies to Recommended content SqliteDataReader Class () Provides methods for reading the result of a command executed against a SQLite database. Evaluate the prepared statement by calling sqlite3 step one or more times. Consistent: a transaction must ensure to change the database from one valid state to another. To run an SQL statement, the application follows these steps: Create a prepared statement using sqlite3 prepare ().When you commit a transaction, either the entire transaction is applied or not. It means that a change cannot be broken down into smaller ones. Atomic: a transaction should be atomic.SQLite guarantees all the transactions are ACID compliant even if the transaction is interrupted by a program crash, operation system dump, or power failure to the computer. SQLite is a transactional database that all changes and queries are atomic, consistent, isolated, and durable (ACID). Summary: in this tutorial, we will show you how to use the SQLite transaction to ensure the integrity and reliability of the data.
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