Firebird Internals: Inside a Firebird Databaseof the information in this manual has been extracted from the Firebird source code — mainly on the ODS related code and headers — and from some (partially out of date) documents on the Research part of described within this document are those with an ODS of 11.1—in other words, Firebird 2.1—and a page size of 4,096 bytes. There may be differences between this ODS version and previous ones and wherever possible Bytes 0x02 - 0x03. Checksum for the whole page. No longer used, always 12345, 0x3039. Databases using ODS8 on Windows NT do have a valid checksum here.  < 11): print("Error: too few arguments PerfectPlayer as PP import SpaceSaveSarsa as SS import SpaceSaveQlearning as SQ import OneDSarsa as ODS import SpaceSaveSarsaSpread as SSSS if (len(sys.argv) < 5): print("Error: too few arguments ml = SQ.SpaceSaveQlearning(startState) elif (trainingType == 4): ml = ODS.OneDSarsa(startState) else: ml = SSSS.SpaceSaveSarsaSpread(startState)0 码力 | 109 页 | 6.58 MB | 2 年前3
firebird gbakRestore ..... 18 6.3. Metadata Only ..... 18 6.4. Splitting The Backup ..... 19 6.5. Change The ODS ..... 20 6.6. Change The Cache Size ..... 20 6.7. Change The Page Size ..... 21 6.8. Create A Firebird to restore the database, however, while this may result in an upgrade to the On Disc Structure (ODS) for the database in question, the SQL Dialect will never be changed. If you backup an InterBase dialect dialect 1 database and then use the dump file to recreate it under Firebird 2.1, for example, the ODS will be updated to 11.1 but the SQL Dialect will remain as 1.  throws Exception { // connect through driver OracleDataSource ods = new OracleDataSource(); Connection conn = null; Statement stmt = null; ResultSet sql.ArrayDescriptor arrDesc; try { ods.setURL("jdbc:oracle:thin:oe/oe@$ORACLE_INSTANCE"); } conn = ods.getConnection(); } catch (Exception e) {0 码力 | 21 页 | 1.03 MB | 2 年前3共 124 条- 1
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