CREATE TABLE Texttran (cola INT PRIMARY KEY,colb CHAR(3))
GO
BEGIN TRANSACTION outertran--@@TRANCOUNT set to 1.
GO
INSERT INTO testtran VALUES(1,'aaa')
GO
BEGIN TRANSACTION inner1--@@TRANCOUNT set to 2.
GO
INSERT INTO texttran VALUES(2,'bbb')
GO
BEGIN TRANSACTION inner2--@@TRANCOUNT set to 3.
GO
INSERT INTO testtran VALUES(3.'CCC')
GO
COMMIT TRANSACTION inner2--decrements @@TRANCOUNT to 2.
GO
COMMIT TRANSACTION inner1--decrements @@TRANCOUNT to 1.
GO
COMMIT TRANSACTION outertran--decrements @@TRANCOUNT to 0.
是什么意思?能说的详细些吗?