Transactions
A transaction is a sequence of SQL operations that starts with the START TRANSACTION statement and ends with the COMMIT statement. Either the effect of all operations will be published, or no results will be published at all.
In GridGain 9, you start the transaction by using the START TRANSACTION statement:
Diagram( Terminal('START TRANSACTION'), ZeroOrMore( Terminal('READ ONLY'), Terminal('READ WRITE')))
Parameters:
-
READ WRITE- both read and write operations are allowed in the transaction. Used by default. -
READ ONLY- only read operations are allowed in the transaction.
You close and commit the transaction by using the COMMIT statement:
Diagram( Terminal('COMMIT'))
Example
The example below inserts 3 lines into the table in a single transaction, ensuring they will all be committed together:
START TRANSACTION READ WRITE;
INSERT INTO Person (id, name, surname) VALUES (1, 'John', 'Smith');
INSERT INTO Person (id, name, surname) VALUES (2, 'Jane', 'Smith');
INSERT INTO Person (id, name, surname) VALUES (3, 'Adam', 'Mason');
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