Sql代码   /* 日期时间范围查询 */      ———- 创建日期时间测试表———————————————————–     create table testdatetime(          ID integer not null primary KEY,          createdate  CHAR(10)  NULL,          startdate DATE NULL,          enddate DATE NULL,          buydate  CHAR(10)  NULL,          usedate  varchar2(20)  NULL   ) ;   ———————— 日期时间范围查询 ————————————      SELECT t.*,t.ROWID FROM testdatetime t ;      –字段为：字符串类型（char），长度为:10   SELECT * FROM testdatetime t WHERE 1=1 AND t.createdate = ‘2011-07-01’;      SELECT * FROM testdatetime t WHERE 1=1 AND t.createdate > ‘2011-07-01’;      SELECT * FROM testdatetime t WHERE 1=1 AND t.createdate < ‘2011-07-01’;      SELECT * FROM testdatetime t WHERE 1=1 AND t.createdate >= ‘2011-06-01’ AND

t.createdate <= ‘2011-07-05′;        SELECT * FROM testdatetime t WHERE 1=1 AND to_date(t.createdate,’yyyy-MM-dd’) between to_date(‘2011-06-01′,’yyyy-MM-dd’) and to_date(‘20110705′,’yyyymmdd’) ;      ——————————————————————-   SELECT t.*,t.ROWID FROM testdatetime t ;      –字段为：字符串类型（char），长度为:20   SELECT * FROM testdatetime t WHERE 1=1 AND t.usedate = ‘2011-07-01 10:00:00’;      SELECT * FROM testdatetime t WHERE 1=1 AND t.usedate > ‘2011-07-01’;      SELECT * FROM testdatetime t WHERE 1=1 AND t.usedate < ‘2011-07-01’;      SELECT * FROM testdatetime t WHERE 1=1 AND t.usedate >= ‘2011-06-01’ AND t.usedate <= ‘2011-07-05′;      SELECT * FROM testdatetime t WHERE 1=1 AND to_date(t.usedate,’yyyy-MM-dd HH24:MI:SS’)

between to_date(‘2011-07-01 12:00:00′,’yyyy-MM-dd HH24:MI:SS’) and to_date(‘20110702 12:00:00′,’yyyymmdd HH24:MI:SS’) ;      ————————————————————————-   SELECT t.*,t.ROWID FROM testdatetime t ;      –字段为：日期时间类型（date）   SELECT * FROM testdatetime t WHERE 1=1 AND t.startdate = to_date(‘2011-07-01′,’yyyy-MM-dd’);      SELECT * FROM testdatetime t WHERE 1=1 AND t.startdate > to_date(‘2011-07-01′,’yyyy-MM-dd’);      SELECT * FROM testdatetime t WHERE 1=1 AND t.startdate < to_date(‘2011-07-01′,’yyyy-MM-dd’);      SELECT * FROM testdatetime t WHERE 1=1 AND t.startdate >= to_date(‘2011-07-01′,’yyyy-MM-dd’)

AND t.startdate <= to_date(‘2011-07-02′,’yyyy-MM-dd’);      SELECT * FROM testdatetime t WHERE 1=1 AND t.startdate between to_date(‘2011-07-01′,’yyyy-MM-dd’) AND to_date(‘2011-07-02′,’yyyy-MM-dd’);      ———————-   SELECT * FROM testdatetime t WHERE 1=1 AND t.startdate = to_date(‘2011-07-01 12:00:00′,’yyyy-MM-dd HH24:MI:SS’);      SELECT * FROM testdatetime t WHERE 1=1 AND t.startdate > to_date(‘2011-07-01 12:00:00′,’yyyy-MM-dd HH24:MI:SS’);      SELECT * FROM testdatetime t WHERE 1=1 AND t.startdate < to_date(‘2011-07-01 12:00:00′,’yyyy-MM-dd HH24:MI:SS’);      SELECT * FROM testdatetime t WHERE 1=1 AND t.startdate >= to_date(‘2011-07-01 01:00:00′,’yyyy-MM-dd HH24:MI:SS’) AND t.startdate <= to_date(‘2011-07-01 23:00:00′,’yyyy-MM-dd HH24:MI:SS’);          SELECT * FROM testdatetime t WHERE 1=1 AND t.startdate between to_date(‘2011-07-01 01:00:00′,’yyyy-MM-dd HH24:MI:SS’) AND to_date(‘2011-07-01 23:00:00′,’yyyy-MM-dd HH24:MI:SS’);      ———————–   SELECT * FROM testdatetime t WHERE 1=1 AND to_char(t.startdate,’yyyy-MM-dd’) = ‘2011-07-01′;      SELECT * FROM testdatetime t WHERE 1=1 AND to_char(t.startdate,’yyyy-MM-dd’) > ‘2011-07-01′;      SELECT * FROM testdatetime t WHERE 1=1 AND to_char(t.startdate,’yyyy-MM-dd’) < ‘2011-07-01′;          SELECT * FROM testdatetime t WHERE 1=1 AND to_char(t.startdate,’yyyy-MM-dd’) >= ‘2011-07-01′ AND to_char(t.startdate,’yyyy-MM-dd’) <= ‘2011-07-02′;      SELECT * FROM testdatetime t WHERE 1=1 AND to_char(t.startdate,’yyyy-MM-dd’) between ‘2011-07-01’ AND  ‘2011-07-02’;