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ODBC Driver Guide

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Transaction Processing

sdk\sql.odbc\tutorials\ODBCTutorial4.c

Now we will discuss transaction processing as it relates to the c-treeACE SQL ODBC Interface.

Transaction processing provides a safe method by which multiple database operations spread across separate tables/files are guaranteed to be atomic. By atomic, we mean that, within a transaction, either all of the operations succeed or none of the operations succeed. This "either all or none" atomicity ensures that the integrity of the data in related tables/files is secure.

Like all other examples in the c-tree tutorial series, this tutorial simplifies the creation and use of a database into four simple steps: Initialize(), Define(), Manage(), and You’re Done()!

Tutorial #4: Transaction Processing

Here we demonstrate transaction control.

  • Initialize() - Connects to the c-treeACE Database Engine.
  • Define() - Defines and creates our four tables/files.
  • Manage() - Adds rows/records to multiple tables/files under transaction control.
  • Done() - Disconnects from c-treeACE Database Engine.

Note our simple mainline:

/*

* main()

*

* The main() function implements the concept of "init, define, manage

* and you're done..."

*/

int main(int argc, char* argv[])

{

Initialize();

Define();

Manage();

Done();

printf("\nPress <ENTER> key to exit . . .\n");

getchar();

return(0);

}

We suggest opening the source code with your own editor.

Continue now to review these four steps.

In This Section

Init

Define

Manage

Done

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