This function creates a handle off the connection to perform SQL queries. Multiple command handles can be created.
Multiple command handles do not add to the license count; only ctsqlNewConnection() will increase the connection count.
Multiple command handles do not act separately in transactions. Transactions are on the connection.
This API is thread-safe at the connection level. If you are sharing a single ctsqlConnection (including child handles like ctsqlCommands) among multiple threads, you will need to ensure that all operations on a particular connection are serialized.
You can switch thread context using the ISAM Thread API or any other threading API.
Return
ctsqlNewCommand() returns the pointer to a command handle, or NULL on failure.
