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The Java extension also includes support for JDBC. To use the driver, specify SQLite.JDBCDriver as the JDBC driver s class name. Also, make sure you have sqlite.jar in your class path and the native library in your Java library path. The JDBC URLs to connect to a SQLite database have the format jdbc:sqlite:/path, where path has to be specified as the path name to the SQLite database, for example. <A NAME="50520101_jdbc_driver">jdbc:sqlite://dirA/dirB/dbfile jdbc:sqlite:/DRIVE:/dirA/dirB/dbfile jdbc:sqlite:///COMPUTERNAME/shareA/dirB/dbfile Currently, the supported data types on SQLite tables are java.lang.String, short, int, float, and double. Some support exists for java.sql.Date, java.sql.Time, and java.sql.Timestamp. A connection property daterepr is used to define behavior for these data types. A value of daterepr=Julian sets SQLite to interpret all insert/updates of these data types as a floating-point conversion to the equivalent Julian

The TIMESTAMP type is very much like the DATE, with the addition of support for fractional seconds and time zones. We ll look at the TIMESTAMP type in the following three sections: one with regard to just the fractional second support but no time zone support, and the other two with regard to the two methods of storing the TIMESTAMP with time zone support.

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The syntax of the basic TIMESTAMP datatype is straightforward TIMESTAMP(n) where N is optional; it is used to specify the scale of the seconds component in the timestamp and may take on values between 0 and 9. If you specify 0, then a TIMESTAMP is functionally equivalent to a DATE and, in fact, stores the same values in the same manner: ops$tkyte@ORA11GR2> create table t 2 ( dt date, 3 ts timestamp(0) 4 ) 5 / Table created. ops$tkyte@ORA11GR2> insert into t values ( sysdate, systimestamp ); 1 row created. ops$tkyte@ORA11GR2> select dump(dt,10) dump, dump(ts,10) dump 2 from t; DUMP DUMP ----------------------------------- ----------------------------------Typ=12 Len=7: 120,110,4,12,20,4,8 Typ=180 Len=7: 120,110,4,12,20,4,8 The datatypes are different (the Typ= field indicates that), but the manner in which they store data is identical. The TIMESTAMP datatype will differ in length from the DATE type when you specify some number of fractional seconds to preserve, for example: ops$tkyte@ORA11GR2> create table t 2 ( dt date, 3 ts timestamp(9) 4 ) 5 / Table created. ops$tkyte@ORA11GR2> insert into t values ( sysdate, systimestamp ); 1 row created. ops$tkyte@ORA11GR2> select dump(dt,10) dump, dump(ts,10) dump 2 from t;

You can freeze the cells at the top and left of the window, to keep those cells always in view. 1. Select the cell below and to the right of the cells you want to freeze. For example, to freeze rows 1:5, and columns A:B, select cell C6. The selected cell can be inside your pivot table. 2. On the Ribbon, click the View tab, and in the Window group, click Freeze Panes, and then click Freeze Panes.

DUMP DUMP ----------------------------------- ----------------------------------Typ=12 Len=7: 120,110,4,12,20,4,8 Typ=180 Len=11: 120,110,4,12,20,4,8 ,6,147,81,176 Now the TIMESTAMP consumes 11 bytes of storage, and the extra 4 bytes at the end contain the fractional seconds, which we can see by looking at the time that was stored: ops$tkyte@ORA11GR2> alter session set nls_date_format = 'dd-mon-yyyy hh24:mi:ss'; Session altered. ops$tkyte@ORA11GR2> select * from t; DT TS -------------------- -------------------------------12-apr-2010 19:03:07 12-APR-10 07.03.07.110318000 PM ops$tkyte@ORA11GR2> select dump(ts,16) dump from t; DUMP -------------------------------------------------Typ=180 Len=11: 78,6e,4,c,14,4,8,6,93,51,b0 ops$tkyte%ORA11GR2> select to_number('069351b0', 'xxxxxxxx' ) from dual 2 / TO_NUMBER('069351B0','XXXXXXXX') -------------------------------110318000 We can see the fractional seconds that were stored are there in the last 4 bytes. We used the DUMP function to inspect the data in HEX this time (base 16) so we could easily convert the 4 bytes into the decimal representation.

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