Select time from sysdate
Hi Experts,
I have to concatenate a date(not sysdate) with the system time and store it in a column having datatype as DATE...
So I tried like this....
SELECT
TO_CHAR (C_DATE, 'DD-MON-YYYY')
|| ' '
|| TO_CHAR (SYSDATE, 'HH:MI:SS PM')
FROM DUAL;
But while inserting the output of the above query in my table it throws error like this...
ORA-01830: date format picture ends before converting entire input string
Is there any possibility to achieve this....
Thanks in advance.
Hi,
The || operator produces a string. Don't use a string where a DATE is expected; use a DATE instead. For example
INSERT INTO new_table (c_date)
SELECT TRUNC (SYSDATE) + (c_date - TRUNC (c_date))
FROM old_table;
Similar Messages
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How to subtract Time from Sysdate
Hello,
I want to subtract time from sysdate and get the sysdate with time.
Example : = (Sysdate with time)03-mar-2002 16:40:55 - 8 (hours). The result should be like :03-mar-2002 08:40:55
How to write a query for this?.
Please let me know as soon as possible.
Thanks,
Ravi.Hi Ravi...
SYSDATE includes time, TRUNC(SYSDATE) does not include time.
If you subtract these two, you'll get a positive number of 1.00 or less which is the fraction of a day. For instance high noon would have a fraction of 0.50000. 12:01 p.m. would be 0.50000 + (1/(24*60)), or 0.50069444....
If you want to set the clock back, by calculating a "date" that is 8 hours less than the SYSDATE, then SYSDATE - (8/24) will do that. This will work even if SYSDATE was something like 2 a.m., because it will then set it to 6 p.m. of the day before the day in SYSDATE.
If you want to set a "date" to a specific time on the day of SYSDATE, then calculate the fraction for that time and add it to the TRUNC(SYSDATE). High noon would be TRUNC(SYSDATE) + 0.5.
SELECT TO_CHAR(TRUNC(SYSDATE)+0.5,'DD-MON-YY HH:MI:SS am') AS NOON FROM DUAL;Hope this helps...
Larry Johnson -
i have a doubt as will a select based on a view will take more time than a select on 2 tables with a union.
View will be:-
create view1 as
select column1 from table1
union
select column1 from table2
so, will a
select * from view1
take more time than a
select column1 from table1
union
select column1 from table2
Please help in solving the doubt as it is urgent.
regards.If it's that urgent why didn't you just rustle up a test case for yourself? You could have done that in the time it took you to post, let alone wait for my slow fingers to type one up and compose this reply. We are all volunteers here and there's no SLA.
Here is a test case. Obviously the stats are different, that's because of the data in the buffer cache, but the EXPLAIN PLAN is identical (except for the VIEW bit), so the two queries should execute in a similar timeframe.
Cheers, APC
SQL> SET autotrace TRACEONLY
SQL> SELECT col1 FROM t_10K
2 UNION
3 SELECT col1 FROM t_5k1
4 /
10000 rows selected.
Execution Plan
0 SELECT STATEMENT Optimizer=CHOOSE (Cost=43 Card=15000 Bytes=
60000)
1 0 SORT (UNIQUE) (Cost=43 Card=15000 Bytes=60000)
2 1 UNION-ALL
3 2 INDEX (FAST FULL SCAN) OF 'T10K_PK' (UNIQUE) (Cost=3 C
ard=10000 Bytes=40000)
4 2 TABLE ACCESS (FULL) OF 'T_5K1' (Cost=3 Card=5000 Bytes
=20000)
Statistics
750 recursive calls
0 db block gets
213 consistent gets
71 physical reads
0 redo size
132870 bytes sent via SQL*Net to client
7825 bytes received via SQL*Net from client
668 SQL*Net roundtrips to/from client
16 sorts (memory)
0 sorts (disk)
10000 rows processed
SQL> CREATE VIEW v1 AS
2 SELECT col1 FROM t_10K
3 UNION
4 SELECT col1 FROM t_5k1
5 /
View created.
SQL> SELECT * FROM v1
2 /
10000 rows selected.
Execution Plan
0 SELECT STATEMENT Optimizer=CHOOSE (Cost=43 Card=15000 Bytes=
195000)
1 0 VIEW OF 'V1' (Cost=43 Card=15000 Bytes=195000)
2 1 SORT (UNIQUE) (Cost=43 Card=15000 Bytes=60000)
3 2 UNION-ALL
4 3 INDEX (FAST FULL SCAN) OF 'T10K_PK' (UNIQUE) (Cost=3
Card=10000 Bytes=40000)
5 3 TABLE ACCESS (FULL) OF 'T_5K1' (Cost=3 Card=5000 Byt
es=20000)
Statistics
19 recursive calls
0 db block gets
54 consistent gets
0 physical reads
0 redo size
132870 bytes sent via SQL*Net to client
7825 bytes received via SQL*Net from client
668 SQL*Net roundtrips to/from client
3 sorts (memory)
0 sorts (disk)
10000 rows processed
SQL> -
Extract time from sysdate or some other?
Dear all,
I want to extract the Hour as a number from sysdate. Plz guide me.
Ex: SELECT EXTRACT (YEAR FROM SYSDATE) FROM DUAL;
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Select time from date type without to_char
I have table T(myDate date, + about 15 columns). When I insert values into it, i also insert the time of a date.
If I wanna see all the data in the table, I need to call to_char on column myDate. So need to write all the 15 column names in the select.
I'd like to simply write a select * from T, but see the time for myDate as well. Is this possible?
ThanksYou can use alter session in a SQLPlus session
See this example:
SQL>
SQL> select * from emp
2 where rownum <=2;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
7369 SMITH CLERK 7902 17-DEC-80 800 20
7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30
SQL>
SQL> alter session set nls_date_format='DD-MON-YYYY HH24:MI:SS';
Session altered.
SQL>
SQL> select * from emp
2 where rownum <=2;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
7369 SMITH CLERK 7902 17-DEC-1980 00:00:00 800 20
7499 ALLEN SALESMAN 7698 20-FEB-1981 00:00:00 1600 300 30Regards.
Al -
URGENT: Selecting only 25 records at a time from a table
URGENT !!!!
Hi,
Im having a RFC which selects records from a table (say table_A) and depending on these selected records, further processing is done within that RFC.
Now my problem is, this table_A contains around 200 matching records. Due to this entire logical processing consumes lot of time. Hence my RFC is taking huge time to produce result. (apprx 10 mins).
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I'll give this batch size as input to RFC?
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Insert/select one million rows at a time from source to target table
Hi,
Oracle 10.2.0.4.0
I am trying to insert around 10 million rows into table target from source as follows:
INSERT /*+ APPEND NOLOGGING */ INTO target
SELECT *
FROM source f
WHERE
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Thanks,
Ashok902986 wrote:
NOT EXISTS(SELECT 1 from target m WHERE f.col1 = m.col2 and f.col2 = m.col2);
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Do you have 10 million in source and very few in target, so most of source will be inserted into target?
Or do you have 9 million already in target, so most of source will be filtered away and only few records inserted?
And what is the explain plan for your statement?
INSERT /*+ APPEND NOLOGGING */ INTO target
SELECT *
FROM source f
WHERE
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So perhaps you can work towards an explain plan that allows the database to do the inserts "along the way" rather than calculate the whole thing in temp first.
That probably will go much slower (for example using nested loops for each row to check the exists), but that's a tradeoff - if you can't have sufficient TEMP then you may have to optimize for less usage of that resource at the expense of another resource ;-)
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Select count(*) from table in oracle 11g with direct path read takes time
select count(*) from table takes long time, even more than couple of hours..
direct path read is the wait event which is almost is at 99%..
can u someone provide some info on this.. on solution.. thankxknowledgespring wrote:
table has millions of records... 130 millions..
select count(*) from BIG_SIZE_TABLE; --- executed in sql plus command prompt.
Rows Execution Plan
0 SELECT STATEMENT MODE: ALL_ROWS
0 SORT (AGGREGATE)
0 TABLE ACCESS MODE: ANALYZED (FULL) OF 'BIG_SIZE_TABLE' (TABLE)
Elapsed times include waiting on following events:
Event waited on Times Max. Wait Total Waited
---------------------------------------- Waited ---------- ------------
SQL*Net message to client 1 0.00 0.00
enq: KO - fast object checkpoint 1 0.01 0.01
Disk file operations I/O 18 0.00 0.00
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On a typical system, by the way, you can usually turn one direct read for tablescan into 1MB, so your scan seems to have covered about 59 GB, which seems to be in the right sort of ballpark for 130M rows.
we have another query and when we test the query execution using v$sql, is_bind_sensitive =N, how to make is_bind_sensitive=Y all the time.. There is a hint /*+ bind_aware */ - I'd have to check whether or not it's documented at present. It might help.
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Regards
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Select extract(month from sysdate)+6 = returns 13 and not 1(jan)
Hi
I am using the following query to get the month 6 months from now.
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I have a program that uses two ALV grids in one dialog screen. I'm using the OO ALV model (SALV* classes).
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How can I select the rows, then click on just one button, and process the marked entries from both grids?
Is it somehow possible to raise an event belonging to each grid programmatically, so that then the corresponding CL_SALV_SELECTIONS->GET_SELECTED_ROWS will work?
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prabhu -
Performance issue in selecting data from a view because of not in condition
Hi experts,
I have a requirement to select data in a view which is not available in a fact with certain join conditions. but the fact table contains 2 crore rows of data. so this view is not working at all. it is running for long time. im pasting query here. please help me to tune it. whole query except prior to not in is executing in 15 minutes. but when i add not in condition it is running for so many hours as the second table has millions of records.
CREATE OR REPLACE FORCE VIEW EDWOWN.MEDW_V_GIEA_SERVICE_LEVEL11
SYS_ENT_ID,
SERVICE_LEVEL_NO,
CUSTOMER_NO,
BILL_TO_LOCATION,
PART_NO,
SRCE_SYS_ID,
BUS_AREA_ID,
CONTRACT,
WAREHOUSE,
ORDER_NO,
LINE_NO,
REL_NO,
REVISED_DUE_DATE,
REVISED_QTY_DUE,
QTY_RESERVED,
QTY_PICKED,
QTY_SHIPPED,
ABBREVIATION,
ACCT_WEEK,
ACCT_MONTH,
ACCT_YEAR,
UPDATED_FLAG,
CREATE_DATE,
RECORD_DATE,
BASE_WAREHOUSE,
EARLIEST_SHIP_DATE,
LATEST_SHIP_DATE,
SERVICE_DATE,
SHIP_PCT,
ALLOC_PCT,
WHSE_PCT,
ABC_CLASS,
LOCATION_ID,
RELEASE_COMP,
WAREHOUSE_DESC,
MAKE_TO_FLAG,
SOURCE_CREATE_DATE,
SOURCE_UPDATE_DATE,
SOURCE_CREATED_BY,
SOURCE_UPDATED_BY,
ENTITY_CODE,
RECORD_ID,
SRC_SYS_ENT_ID,
BSS_HIERARCHY_KEY,
SERVICE_LVL_FLAG
AS
SELECT SL.SYS_ENT_ID,
SL.ENTITY_CODE
|| '-'
|| SL.order_no
|| '-'
|| SL.LINE_NO
|| '-'
|| SL.REL_NO
SERVICE_LEVEL_NO,
SL.CUSTOMER_NO,
SL.BILL_TO_LOCATION,
SL.PART_NO,
SL.SRCE_SYS_ID,
SL.BUS_AREA_ID,
SL.CONTRACT,
SL.WAREHOUSE,
SL.ORDER_NO,
SL.LINE_NO,
SL.REL_NO,
SL.REVISED_DUE_DATE,
SL.REVISED_QTY_DUE,
NULL QTY_RESERVED,
NULL QTY_PICKED,
SL.QTY_SHIPPED,
SL.ABBREVIATION,
NULL ACCT_WEEK,
NULL ACCT_MONTH,
NULL ACCT_YEAR,
NULL UPDATED_FLAG,
SL.CREATE_DATE,
SL.RECORD_DATE,
SL.BASE_WAREHOUSE,
SL.EARLIEST_SHIP_DATE,
SL.LATEST_SHIP_DATE,
SL.SERVICE_DATE,
SL.SHIP_PCT,
0 ALLOC_PCT,
0 WHSE_PCT,
SL.ABC_CLASS,
SL.LOCATION_ID,
NULL RELEASE_COMP,
SL.WAREHOUSE_DESC,
SL.MAKE_TO_FLAG,
SL.source_create_date,
SL.source_update_date,
SL.source_created_by,
SL.source_updated_by,
SL.ENTITY_CODE,
SL.RECORD_ID,
SL.SRC_SYS_ENT_ID,
SL.BSS_HIERARCHY_KEY,
'Y' SERVICE_LVL_FLAG
FROM ( SELECT SL_INT.SYS_ENT_ID,
SL_INT.CUSTOMER_NO,
SL_INT.BILL_TO_LOCATION,
SL_INT.PART_NO,
SL_INT.SRCE_SYS_ID,
SL_INT.BUS_AREA_ID,
SL_INT.CONTRACT,
SL_INT.WAREHOUSE,
SL_INT.ORDER_NO,
SL_INT.LINE_NO,
MAX (SL_INT.REL_NO) REL_NO,
SL_INT.REVISED_DUE_DATE,
SUM (SL_INT.REVISED_QTY_DUE) REVISED_QTY_DUE,
SUM (SL_INT.QTY_SHIPPED) QTY_SHIPPED,
SL_INT.ABBREVIATION,
MAX (SL_INT.CREATE_DATE) CREATE_DATE,
MAX (SL_INT.RECORD_DATE) RECORD_DATE,
SL_INT.BASE_WAREHOUSE,
MAX (SL_INT.LAST_SHIPMENT_DATE) LAST_SHIPMENT_DATE,
MAX (SL_INT.EARLIEST_SHIP_DATE) EARLIEST_SHIP_DATE,
MAX (SL_INT.LATEST_SHIP_DATE) LATEST_SHIP_DATE,
MAX (
CASE
WHEN TRUNC (SL_INT.LAST_SHIPMENT_DATE) <=
TRUNC (SL_INT.LATEST_SHIP_DATE)
THEN
TRUNC (SL_INT.LAST_SHIPMENT_DATE)
ELSE
TRUNC (SL_INT.LATEST_SHIP_DATE)
END)
SERVICE_DATE,
MIN (
CASE
WHEN TRUNC (SL_INT.LAST_SHIPMENT_DATE) >=
TRUNC (SL_INT.EARLIEST_SHIP_DATE)
AND TRUNC (SL_INT.LAST_SHIPMENT_DATE) <=
TRUNC (SL_INT.LATEST_SHIP_DATE)
AND SL_INT.QTY_SHIPPED = SL_INT.REVISED_QTY_DUE
THEN
100
ELSE
0
END)
SHIP_PCT,
SL_INT.ABC_CLASS,
SL_INT.LOCATION_ID,
SL_INT.WAREHOUSE_DESC,
SL_INT.MAKE_TO_FLAG,
MAX (SL_INT.source_create_date) source_create_date,
MAX (SL_INT.source_update_date) source_update_date,
SL_INT.source_created_by,
SL_INT.source_updated_by,
SL_INT.ENTITY_CODE,
SL_INT.RECORD_ID,
SL_INT.SRC_SYS_ENT_ID,
SL_INT.BSS_HIERARCHY_KEY
FROM (SELECT SL_UNADJ.*,
DECODE (
TRIM (TIMA.DAY_DESC),
'saturday', SL_UNADJ.REVISED_DUE_DATE
- 1
- early_ship_days,
'sunday', SL_UNADJ.REVISED_DUE_DATE
- 2
- early_ship_days,
SL_UNADJ.REVISED_DUE_DATE - early_ship_days)
EARLIEST_SHIP_DATE,
DECODE (
TRIM (TIMB.DAY_DESC),
'saturday', SL_UNADJ.REVISED_DUE_DATE
+ 2
+ LATE_SHIP_DAYS,
'sunday', SL_UNADJ.REVISED_DUE_DATE
+ 1
+ LATE_SHIP_DAYS,
SL_UNADJ.REVISED_DUE_DATE + LATE_SHIP_DAYS)
LATEST_SHIP_DATE
FROM (SELECT NVL (s2.sys_ent_id, '00') SYS_ENT_ID,
cust.customer_no CUSTOMER_NO,
cust.bill_to_loc BILL_TO_LOCATION,
cust.early_ship_days,
CUST.LATE_SHIP_DAYS,
ord.PART_NO,
ord.SRCE_SYS_ID,
ord.BUS_AREA_ID,
ord.BUS_AREA_ID CONTRACT,
NVL (WAREHOUSE, ord.entity_code) WAREHOUSE,
ORDER_NO,
ORDER_LINE_NO LINE_NO,
ORDER_REL_NO REL_NO,
TRUNC (REVISED_DUE_DATE) REVISED_DUE_DATE,
REVISED_ORDER_QTY REVISED_QTY_DUE,
-- NULL QTY_RESERVED,
-- NULL QTY_PICKED,
SHIPPED_QTY QTY_SHIPPED,
sold_to_abbreviation ABBREVIATION,
-- NULL ACCT_WEEK,
-- NULL ACCT_MONTH,
-- NULL ACCT_YEAR,
-- NULL UPDATED_FLAG,
ord.CREATE_DATE CREATE_DATE,
ord.CREATE_DATE RECORD_DATE,
NVL (WAREHOUSE, ord.entity_code)
BASE_WAREHOUSE,
LAST_SHIPMENT_DATE,
TRUNC (REVISED_DUE_DATE)
- cust.early_ship_days
EARLIEST_SHIP_DATE_UnAdj,
TRUNC (REVISED_DUE_DATE)
+ CUST.LATE_SHIP_DAYS
LATEST_SHIP_DATE_UnAdj,
--0 ALLOC_PCT,
--0 WHSE_PCT,
ABC_CLASS,
NVL (LOCATION_ID, '000') LOCATION_ID,
--NULL RELEASE_COMP,
WAREHOUSE_DESC,
NVL (
DECODE (MAKE_TO_FLAG,
'S', 0,
'O', 1,
'', -1),
-1)
MAKE_TO_FLAG,
ord.CREATE_DATE source_create_date,
ord.UPDATE_DATE source_update_date,
ord.CREATED_BY source_created_by,
ord.UPDATED_BY source_updated_by,
ord.ENTITY_CODE,
ord.RECORD_ID,
src.SYS_ENT_ID SRC_SYS_ENT_ID,
ord.BSS_HIERARCHY_KEY
FROM EDW_DTL_ORDER_FACT ord,
edw_v_maxv_cust_dim cust,
edw_v_maxv_part_dim part,
EDW_WAREHOUSE_LKP war,
EDW_SOURCE_LKP src,
MEDW_PLANT_LKP s2,
edw_v_incr_refresh_ctl incr
WHERE ord.BSS_HIERARCHY_KEY =
cust.BSS_HIERARCHY_KEY(+)
AND ord.record_id = part.record_id(+)
AND ord.part_no = part.part_no(+)
AND NVL (ord.WAREHOUSE, ord.entity_code) =
war.WAREHOUSE_code(+)
AND ord.entity_code = war.entity_code(+)
AND ord.record_id = src.record_id
AND src.calculate_back_order_flag = 'Y'
AND NVL (cancel_order_flag, 'N') != 'Y'
AND UPPER (part.source_plant) =
UPPER (s2.location_code1(+))
AND mapping_name = 'MEDW_MAP_GIEA_MTOS_STG'
-- AND NVL (ord.UPDATE_DATE, SYSDATE) >=
-- MAX_SOURCE_UPDATE_DATE
AND UPPER (
NVL (ord.order_status, 'BOOKED')) NOT IN
('ENTERED', 'CANCELLED')
AND TRUNC (REVISED_DUE_DATE) <= SYSDATE) SL_UNADJ,
EDW_TIME_DIM TIMA,
EDW_TIME_DIM TIMB
WHERE TRUNC (SL_UNADJ.EARLIEST_SHIP_DATE_UnAdj) =
TIMA.ACCOUNT_DATE
AND TRUNC (SL_UNADJ.LATEST_SHIP_DATE_Unadj) =
TIMB.ACCOUNT_DATE) SL_INT
WHERE TRUNC (LATEST_SHIP_DATE) <= TRUNC (SYSDATE)
GROUP BY SL_INT.SYS_ENT_ID,
SL_INT.CUSTOMER_NO,
SL_INT.BILL_TO_LOCATION,
SL_INT.PART_NO,
SL_INT.SRCE_SYS_ID,
SL_INT.BUS_AREA_ID,
SL_INT.CONTRACT,
SL_INT.WAREHOUSE,
SL_INT.ORDER_NO,
SL_INT.LINE_NO,
SL_INT.REVISED_DUE_DATE,
SL_INT.ABBREVIATION,
SL_INT.BASE_WAREHOUSE,
SL_INT.ABC_CLASS,
SL_INT.LOCATION_ID,
SL_INT.WAREHOUSE_DESC,
SL_INT.MAKE_TO_FLAG,
SL_INT.source_created_by,
SL_INT.source_updated_by,
SL_INT.ENTITY_CODE,
SL_INT.RECORD_ID,
SL_INT.SRC_SYS_ENT_ID,
SL_INT.BSS_HIERARCHY_KEY) SL
WHERE (SL.BSS_HIERARCHY_KEY,
SL.ORDER_NO,
Sl.line_no,
sl.Revised_due_date,
SL.PART_NO,
sl.sys_ent_id) NOT IN
(SELECT BSS_HIERARCHY_KEY,
ORDER_NO,
line_no,
revised_due_date,
part_no,
src_sys_ent_id
FROM MEDW_MTOS_DTL_FACT
WHERE service_lvl_flag = 'Y');
thanks
asnAlso 'NOT IN' + nullable columns can be an expensive combination - and may not give the expected results. For example, compare these:
with test1 as ( select 1 as key1 from dual )
, test2 as ( select null as key2 from dual )
select * from test1
where key1 not in
( select key2 from test2 );
no rows selected
with test1 as ( select 1 as key1 from dual )
, test2 as ( select null as key2 from dual )
select * from test1
where key1 not in
( select key2 from test2
where key2 is not null );
KEY1
1
1 row selected.Even if the columns do contain values, if they are nullable Oracle has to perform a resource-intensive filter operation in case they are null. An EXISTS construction is not concerned with null values and can therefore use a more efficient execution plan, leading people to think it is inherently faster in general. -
Extracting 24 hour timestramp from sysdate
Hi All,
I have some 24 hour times stored as strings in a table eg 16:00, 18:30 , 04:00 ect
I'm trying to extract the 24 timestamp from SYSDATE so that I can do a comparision such as:
IF (just need timestamp from sysdate in 24 hour format here) > TO_DATE(r.wave_finish_time,'HH24:MI') THEN...
ANy ideas on how to extract the timestamp from sysdate in 24 hour format?
Cheers in advance!
Regards
SatThis will give you an idea (apart from the suggestions already offered).
If not, let us know.
SQL> with some_time_strings as (
2 select '01:00' my_time from dual union all
3 select '02:00' from dual union all
4 select '03:00' from dual union all
5 select '04:00' from dual union all
6 select '05:00' from dual union all
7 select '06:00' from dual union all
8 select '07:00' from dual union all
9 select '08:00' from dual union all
10 select '09:00' from dual union all
11 select '10:00' from dual union all
12 select '11:00' from dual union all
13 select '12:00' from dual union all
14 select '13:00' from dual union all
15 select '14:00' from dual union all
16 select '15:00' from dual
17 )
18 select *
19 from some_time_strings
20 where my_time > to_char(to_date('01-01-2009 04:50', 'dd-mm-yyyy hh24:mi'), 'hh24:mi');
05:00
06:00
07:00
08:00
09:00
10:00
11:00
12:00
13:00
14:00
15:00
11 rijen zijn geselecteerd.Explanation in short:
to_char(to_date('01-01-2009 04:50', 'dd-mm-yyyy hh24:mi'), 'hh24:mi');
means
=> to_date('01-01-2009 04:50', 'dd-mm-yyyy hh24:mi') = the date part, could also be sysdate or any DATE
=> to_char( the date part, 'hh24:mi'); = the VARCHAR2 FORMAT part, you really need to use that, since your 'time' is in fact a string.
Edited by: hoek on Apr 17, 2009 6:51 PM added some extra words, because of the weather
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