C++ library for interfacing with
multiple SQL databases

SQLAPI++ is a C++ library that provides unified API to access different SQL databases.

We support:

By encapsulating vendor APIs, SQLAPI++ library acts as middleware and delivers database portability.

Easy to Use, Easy to Deploy

Using the library saves you time and effort by taking away the complexity of native C APIs provided by database clients.

No need to install and configure OLEDB and/or ODBC drivers when developing and distributing your applications.

Extensibility and Support

The library provides a low-level interface to access database-specific features should that become necessary.

Library supports database connectivity on Windows, Linux/Unix and MacOS.

SQLAPI++ ships with all the sources.

We provide free ongoing email support, one year of bug fixing and new version updates.

Connect to Database

Just make a call to SAConnection::Connect and provide the credentials. SQLAPI++ does the rest by dynamically loading specified client's native library and calling corresponding APIs.

SAConnection con;
con.Connect(_TSA("demo"), _TSA("guest"), _TSA("secret"), SA_SQLServer_Client);

Insert Data into a Table

To insert data create SACommand, bind input variables as needed using stream operators and call SACommand::Execute to send command to the server. SQLAPI++ takes care of preparing and executing the command using native APIs when needed.

SACommand insert(&con, _TSA("INSERT INTO EMPLOYEES (NAME, AGE) VALUES (:1, :2)"));

insert << _TSA("Tom Patt") << 30L;
insert << _TSA("Nick Barry") << 35L;

Read Data from a Table

To read data execute a SELECT command, bind WHERE clause variables as needed and use SACommand::FetchNext in a loop to retrieve all the rows. SQLAPI++ does the hard work of interfacing with native APIs, allocating buffers, etc.


select << 30L;

while(select.FetchNext()) {
    SAString sName = select[1].asString();
    long nAge = select[2].asLong();
    printf("Name: %s, age: %d \n", sName, nAge);

More Examples

Example 1.Connecting to database (and error handling)
Example 2.Executing a simple SQL command
Example 3.Binding input parameters
Example 4.Executing a select query (and fetching result set)
Example 5.Binding LongBinary, LongChar, BLob and CLob data
Example 6.Fetching LongBinary, LongChar, BLob and CLob data
Example 7.Multi-threading support and canceling queries
Example 8.Fetching records in bulk
Example 9.Using Oracle REF CURSORs
Example 10.Using Oracle nested cursors


SQLAPI++ library supports the following C/C++ compilers:

  • Microsoft Visual C++
  • Embarcadero (Borland) C++
  • GNU GCC C++ compiler
  • Solaris Studio C++ compiler

Latest Release

May 18, 2024
General Oracle SQLServer
New Features
  • General: Throw SAException when too large SAString allocation requested (thanks Michael Gandlin)
Bug Fixes
  • Oracle: Fixed the bug with an exception thrown after the result set fetched (thanks Karoly Harmath)
  • SQLServer: Fixed crashing at the connection string parsing when the server name contains semicolon (thanks Michael Gandlin)

See full history...