The following functions are used in OpenInsight to communicate with U2.
| Function | Description |
|---|---|
| U2 Functions in OI U2_BFS | The Main Communication Module between OpenInsight and U2. This function is transparent to the user. |
| U2 Functions in OI U2_Media | The Translation Layer between OpenInsight and U2. This function handles the relationship between the OpenInsight shadow dictionaries and the U2 dictionaries on the back end. This function is mostly transparent to the user. |
| U2 Functions in OI U2_Syncmap | Synchronizes changes between U2 and OpenInsight dictionaries. This function is mostly transparent to the user. |
| U2_Btree_Extract subroutine | This subroutine is similar to the Linear Hash Btree.Extract. Searches one or more indexes for data matching the search criteria passed in. Returns the keys to rows having matching data. |
| U2_Error Function | Provides a method for retrieving U2 error descriptions. |
| U2_ExecProc | Runs procedures on the U2 side from OpenInsight. |
| U2_ExecIType | Performs calculation of I-Types in U2 via U2_Conv. |
| U2_Get_ServerType | Determines the type of U2 database connected. |
| U2_IConv | Converts formatted data into the internal U2 format. |
| U2_OConv | The generic conversion routine for U2 data. |
| U2_Select | This function handles select processing. |
| U2_Subcall | This function allows the calling of subroutines within U2 from OpenInsight. |
| U2_KeepAlive | This function prevents U2 sessions from timing out when idle. |
| U2_Getlist | This function allows for the activatiion |
| U2_SaveList | This function allows for the saving of a list of keys on the server from an active list on the client. |
| U2_Btree_Extract | This procedure, similar to BTREE.EXTRACT, operations on indexed columns within a U2 table. |
| U2_TimeDate | Retrieves the U2 server's time and date. |
