Transactions Control Language (begin, commit, abort) in scripts for more one libraries
In order to manage databases, SQL defines four languages: DDL (Data Definition Language) which includes commands such as CREATE, ALTER, and DROP; DML (Data Manipulation Language) which includes commands such as INSERT, UPDATE, DELETE, and SELECT; DCL (Data Control Language) which includes commands such as GRANT and REVOKE; and TCL (Transaction Control Language) which includes commands such as BEGIN, COMMIT, and ABORT. I have noticed that Memento implements the first three languages, but I do not see the fourth. Triggers allow us to cancel operations in the user interface and that is implemented in one library. I want to know if TCL exists for more than one library and if it is usable in scripts, otherwise it would be important for developers to consider implementing it in future versions.