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This sample illustrates use of TRANSACTIONS via SQL. Notice that TAbsDatabase supports transactions as class methods so you might find it better to use another way.
This SQL script contains 14 queries.
Table "MyTable" is deleted, then recreated and filled with data.
A transaction is started, data is inserted, then this last action is cancelled.
Another transaction is started. data is inserted, then changes are comitted.
At last you can see what data is contained in the table after all queries.
drop table MyTable;
create table MyTable (ID AutoInc, val1 Integer, val2 string(10));
insert into MyTable (val1, val2) values (2,'Start');
start transaction;
insert into MyTable (val1, val2) values (4,'Rollback');
rollback;
start transaction;
insert into MyTable (val1, val2) values (5,'Commit');
commit;
select * from MyTable;
Download Absolute Database | Learn more |
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Current version: 7.95
Released: February 08, 2023
Price: $ 149
 
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Component Ace is all that it advertises. It is easy to implement and is very fast.
In addition, the customer support is the best I have ever had. All my questions were answered within hours, often immediately. The responses also answered my questions, no need for followup emails.
If your application needs the functionality that Component Ace provides, search no further.
Linda Murphy
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