The following table indicates the conformance level of each ODBC function, where this is well-defined.
| Function | Conformance level |
| SQLAllocHandle | Core |
| SQLBindCol | Core |
| SQLBindParameter | Core [1] |
| SQLBrowseConnect | Level 1 |
| SQLBulkOperations | Level 1 |
| SQLCancel | Core [1] |
| SQLCloseCursor | Core |
| SQLColAttribute | Core [1] |
| SQLColumnPrivileges | Level 2 |
| SQLColumns | Core |
| SQLConnect | Core |
| SQLCopyDesc | Core |
| SQLDataSources | Core |
| SQLDescribeCol | Core [1] |
| SQLDescribeParam | Level 2 |
| SQLDisconnect | Core |
| SQLDriverConnect | Core |
| SQLDrivers | Core |
| SQLEndTran | Core [1] |
| SQLExecDirect | Core |
| SQLExecute | Core |
| SQLFetch | Core |
| SQLFetchScroll | Core [1] |
| SQLForeignKeys | Level 2 |
| SQLFreeHandle | Core |
| SQLFreeStmt | Core |
| SQLGetConnectAttr | Core |
| SQLGetCursorName | Core |
| SQLGetData | Core |
| SQLGetDescField | Core |
| SQLGetDescRec | Core |
| SQLGetDiagField | Core |
| SQLGetDiagRec | Core |
| SQLGetEnvAttr | Core |
| SQLGetFunctions | Core |
| SQLGetInfo | Core |
| SQLGetStmtAttr | Core |
| SQLGetTypeInfo | Core |
| SQLMoreResults | Level 1 |
| SQLNativeSql | Core |
| SQLNumParams | Core |
| SQLNumResultCols | Core |
| SQLParamData | Core |
| SQLPrepare | Core |
| SQLPrimaryKeys | Level 1 |
| SQLProcedureColumns | Level 1 |
| SQLProcedures | Level 1 |
| SQLPutData | Core |
| SQLRowCount | Core |
| SQLSetConnectAttr | Core [2] |
| SQLSetCursorName | Core |
| SQLSetDescField | Core [1] |
| SQLSetDescRec | Core |
| SQLSetEnvAttr | Core [2] |
| SQLSetPos | Level 1 [1] |
| SQLSetStmtAttr | Core [2] |
| SQLSpecialColumns | Core [1] |
| SQLStatistics | Core |
| SQLTablePrivileges | Level 2 |
| SQLTables | Core |
[1]Significant features of this function are available only at higher conformance levels.
[2]Setting certain attributes to non-default values depends on the conformance level. For more information, see the next section, “Attribute Conformance.”