How to get the values based on the most recent date
Oracle Version 8iHow to get the new_value based on the most recent date
SELECT max (MODIFIED_ON), the Group LOG_ITEM_CHARACTERISTICS by MODIFIED_ON new_value - does not
Please, someone help me
CREATE TABLE LOG_ITEM_CHARACTERISTICS
(
CHAR_LOG_ID NUMBER(10) NOT NULL,
PIRM_ID VARCHAR2(8) NOT NULL,
CONSTANT_FLAG VARCHAR2(1),
CHARACTERISTIC_NAME VARCHAR2(25) NOT NULL,
TYPE_NAME VARCHAR2(10) NOT NULL,
NEW_VALUE VARCHAR2(3000),
UOM VARCHAR2(10),
MODIFIED_BY VARCHAR2(30),
MODIFIED_ON DATE
)
SET DEFINE OFF;
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, UOM, MODIFIED_BY, MODIFIED_ON)
Values
(187376, '0307490N', 'N', 'OUTPUT CURRENT', 'PS2030/WVL', '1', 'AMPS', 'EMPXD88', TO_DATE('10/25/1999 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, UOM, MODIFIED_BY, MODIFIED_ON)
Values
(187377, '0307490N', 'N', 'OUTPUT VOLTAGE', 'PS2030/WVL', '54.9', 'VOLTS', 'EMPXD88', TO_DATE('09/22/1998 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, UOM, MODIFIED_BY, MODIFIED_ON)
Values
(187378, '0307490N', 'N', 'OUTPUT CURRENT', 'PS2030/WVL', '0', 'AMPS', 'EMDXB88', TO_DATE('09/22/1998 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, UOM, MODIFIED_BY, MODIFIED_ON)
Values
(187384, '0307490N', 'N', 'OUTPUT CURRENT', 'PS2030/WVL', '2', 'AMPS', 'EMAXC29', TO_DATE('11/10/2000 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, UOM, MODIFIED_BY, MODIFIED_ON)
Values
(187385, '0307490N', 'N', 'OUTPUT VOLTAGE', 'PS2030/WVL', '55.1', 'VOLTS', 'EMAXC29', TO_DATE('10/19/2001 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, UOM, MODIFIED_ON)
Values
(2400742, '0307490N', 'N', 'MEASURED LOAD ON PER', 'PS2030/WVL', '2', 'AMPS', TO_DATE('10/19/2001 00:00:00', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, UOM, MODIFIED_BY, MODIFIED_ON)
Values
(574093, '0307490N', 'N', 'MEASURED LOAD ON PER', 'PS2030/WVL', '2', 'AMPS', 'EMCTH88', TO_DATE('12/13/2002 11:55:16', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, UOM, MODIFIED_BY, MODIFIED_ON)
Values
(574094, '0307490N', 'N', 'OUTPUT VOLTAGE', 'PS2030/WVL', '54.9', 'VOLTS', 'EMCTH88', TO_DATE('12/13/2002 11:55:16', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, UOM, MODIFIED_BY, MODIFIED_ON)
Values
(3131486, '0307490N', 'N', 'MEASURED LOAD ON PER', 'PS2030/WVL', '6', 'AMPS', 'EMCTH88', TO_DATE('12/16/2004 14:31:14', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, UOM, MODIFIED_BY, MODIFIED_ON)
Values
(3131487, '0307490N', 'N', 'LAST MEASURED DATE', 'PS2030/WVL', '16-12-04', 'DD/MM/YY', 'EMCTH88', TO_DATE('12/16/2004 14:31:14', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, MODIFIED_BY, MODIFIED_ON)
Values
(3131488, '0307490N', 'Y', 'POWER SUPPLY', 'PS2030/WVL', 'ESSENTIAL', 'EMCTH88', TO_DATE('12/16/2004 14:31:14', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, UOM, MODIFIED_BY, MODIFIED_ON)
Values
(3131489, '0307490N', 'N', 'OUTPUT VOLTAGE', 'PS2030/WVL', '54.9', 'VOLTS', 'EMCTH88', TO_DATE('12/16/2004 14:31:14', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, UOM, MODIFIED_BY, MODIFIED_ON)
Values
(4759086, '0307490N', 'N', 'MEASURED LOAD ON PER', 'PS2030/WVL', '6', 'AMPS', 'EMRCT88', TO_DATE('11/15/2007 14:33:03', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, UOM, MODIFIED_BY, MODIFIED_ON)
Values
(4759087, '0307490N', 'N', 'OUTPUT VOLTAGE', 'PS2030/WVL', '54.9', 'VOLTS', 'EMRCT88', TO_DATE('11/15/2007 14:33:03', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, UOM, MODIFIED_BY, MODIFIED_ON)
Values
(4759088, '0307490N', 'N', 'LAST MEASURED DATE', 'PS2030/WVL', '14/11/07', 'DD/MM/YY', 'EMRCT88', TO_DATE('11/15/2007 14:33:03', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, UOM, MODIFIED_BY, MODIFIED_ON)
Values
(6646012, '0307490N', 'N', 'MEASURED LOAD ON PER', 'PS2030/WVL', '5', 'AMPS', 'PAUL DEVERILL', TO_DATE('01/06/2011 12:56:17', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, MODIFIED_BY, MODIFIED_ON)
Values
(6646013, '0307490N', 'Y', 'BATT TEST SET AT 3M', 'PS2030/WVL', 'null', 'PAUL DEVERILL', TO_DATE('01/06/2011 12:56:17', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, MODIFIED_BY, MODIFIED_ON)
Values
(6646014, '0307490N', 'Y', 'CAP ALARM INHIBITED', 'PS2030/WVL', 'null', 'PAUL DEVERILL', TO_DATE('01/06/2011 12:56:17', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, UOM, MODIFIED_BY, MODIFIED_ON)
Values
(6646015, '0307490N', 'N', 'OUTPUT VOLTAGE', 'PS2030/WVL', '55', 'VOLTS', 'PAUL DEVERILL', TO_DATE('01/06/2011 12:56:17', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, MODIFIED_BY, MODIFIED_ON)
Values
(6646016, '0307490N', 'Y', 'YR ROUTINES REQUIRED', 'PS2030/WVL', 'null', 'PAUL DEVERILL', TO_DATE('01/06/2011 12:56:17', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, MODIFIED_BY, MODIFIED_ON)
Values
(6646057, '0307490N', 'Y', 'BATT TEST SET AT 3M', 'PS2030/WVL', 'null', 'PAUL DEVERILL', TO_DATE('01/06/2011 13:03:18', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, MODIFIED_BY, MODIFIED_ON)
Values
(6646058, '0307490N', 'Y', 'CAP ALARM INHIBITED', 'PS2030/WVL', 'null', 'PAUL DEVERILL', TO_DATE('01/06/2011 13:03:18', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, MODIFIED_BY, MODIFIED_ON)
Values
(6646059, '0307490N', 'Y', 'YR ROUTINES REQUIRED', 'PS2030/WVL', 'null', 'PAUL DEVERILL', TO_DATE('01/06/2011 13:03:18', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, UOM, MODIFIED_BY, MODIFIED_ON)
Values
(6648577, '0307490N', 'N', 'MEASURED LOAD ON PER', 'PS2030/WVL', '6', 'AMPS', 'EMPXD88', TO_DATE('01/07/2011 13:35:45', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, UOM, MODIFIED_BY, MODIFIED_ON)
Values
(6648578, '0307490N', 'N', 'OUTPUT VOLTAGE', 'PS2030/WVL', '55', 'VOLTS', 'EMPXD88', TO_DATE('01/07/2011 13:35:45', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, MODIFIED_BY, MODIFIED_ON)
Values
(6648579, '0307490N', 'Y', 'YR ROUTINES REQUIRED', 'PS2030/WVL', 'NULL', 'EMPXD88', TO_DATE('01/07/2011 13:35:45', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, MODIFIED_BY, MODIFIED_ON)
Values
(6648580, '0307490N', 'Y', 'BATT TEST SET AT 3M', 'PS2030/WVL', 'NULL', 'EMPXD88', TO_DATE('01/07/2011 13:36:00', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, MODIFIED_BY, MODIFIED_ON)
Values
(6648581, '0307490N', 'Y', 'CAP ALARM INHIBITED', 'PS2030/WVL', 'NULL', 'EMPXD88', TO_DATE('01/07/2011 13:36:10', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, UOM, MODIFIED_BY, MODIFIED_ON)
Values
(6648634, '0307490N', 'N', 'MEASURED LOAD ON PER', 'PS2030/WVL', '5', 'AMPS', 'EMPXD88', TO_DATE('01/07/2011 13:51:06', 'MM/DD/YYYY HH24:MI:SS'));
Insert into LOG_ITEM_CHARACTERISTICS
(CHAR_LOG_ID, PIRM_ID, CONSTANT_FLAG, CHARACTERISTIC_NAME, TYPE_NAME, NEW_VALUE, UOM, MODIFIED_BY, MODIFIED_ON)
Values
(6648635, '0307490N', 'N', 'OUTPUT VOLTAGE', 'PS2030/WVL', '55', 'VOLTS', 'EMPXD88', TO_DATE('01/07/2011 13:51:06', 'MM/DD/YYYY HH24:MI:SS'));
COMMIT;user4587979 wrote:
Hi FrankYes, but I had more than 2 tables with item_characteristics, type_characteristics
If there are other tables involved, then CREATE TABLE and INSERT statements for them (for the relevant columns only). You must not post a lot of examples of data; usually just a couple of lines per table is enough to show the problem.
Also post the results desired from these data.
What I try to do is, I'm comparing new_value in log_item_characteristics (whichever is most recent) with CHR_VALUE in the item_characteristics and the needs of different output values
I am trying to query is not giving desired out put
Point out some places where the output is wrong and explain how you get good results in these places, using specific examples from the data sample.
select lic.PIRM_ID, ic.CHR_ID, lic.CHARACTERISTIC_NAME, lic.TYPE_NAME, ic.CHR_VALUE, lic.NEW_VALUE, lic.MODIFIED_BY, lic.MODIFIED_ON, ic.CREATED_BY, ic.CREATED_ON,ic.MODIFIED_BY, ic.MODIFIED_ON from log_item_characteristics lic, item_characteristics ic,type_characteristics tc where lic.TYPE_NAME=tc.TYPE_NAME and lic.CHARACTERISTIC_NAME=tc.CHR_NAME and lic.PIRM_ID=ic.PIRM_ID and tc.CHR_ID=ic.CHR_ID and ic.CHR_VALUE <> lic.NEW_VALUE and lic.pirm_id in ('0307490N','0307521C') order by lic.pirm_id
Thank you; It is useful to see the existing query. Really, you have to format your code.
Please can you help me
What you've posted so far is like saying "I'm going 200 meters to the North, and then 500 meters East, but I'm not getting where I want to go." I would have a better chance to help you if you said, 'I'm out of my house, at 100, Elm Street and try to get to the supermarket at Broadway 279. I'm going 200 meters to the North... ', or, even better. "I want to buy a newspaper and some orange juice, so I thought I'd go to a convenience store. I start at my house, at 100, Elm Street... »
Always post some examples of data (CREATE TABLE and INSERT statements, as you did in your first post) and the desired results from these data. Explain how you get these results from these data.
Tags: Database
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The most recent date in the report filter.
Hello
I have a report with a date column. I would like to run the report for the most recent date. I want to add a filter to the report that retrieves data for the latest in date. What would be the best method to use in the filter. Please notify. Thank you.You must first determine what the column that contains the dates on which you want to filter. Say so you have a Date of treatment column containing dates transactions are processed.
(1) add this column in your workspace.
2) click this column filter button, and then click Advanced Options > convert this filter in SQL.
(3) after the name of the column, enter MAX (date_column). So you will have:
"Table name". " "Date column ' = MAX ("Table name". ("' Date column")
Now the chances are that you will have a lot of reports who need the "latest date" filter. Therefore, you should really do is built that filter in the repository and expose it as a filter registered for all to use.
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Select the most recent DATE for identification.
Hi all
I need to SELECT records with the most recent DATE for each code. A DATE range is part of the selection criteria.
My data.
MY_ID MY_DATE
1684662 26 JANUARY 09
1424097 27 JANUARY 09
1684663 27 JANUARY 09
1684664 27 JANUARY 09
1684672 28 JANUARY 09
0689073 28 JANUARY 09
1052476 21 JANUARY 09
1052476 21 JANUARY 09
1360828 23 JANUARY 09
1684661 23 JANUARY 09
1052476 30 JANUARY 09
1052476 30 JANUARY 09
1052476 30 JANUARY 09
1052476 30 JANUARY 09
The code below works fine when you select 1 ID in the subselect, but with several ID he always selects rownum = 1 (of course). As far my mind takes me.
SELECT my_id,
my_date
Of
(SELECT my_id,
my_date
FROM my_table
ORDER BY DESC my_date
)
WHERE rownum = 1
AND * {color: #ff0000} my_id = 1052476 {color} *.
AND TO_CHAR(my_date,'YYYY/MM/DD') BETWEEN ' 01 / 01/2009 ' AND '' 2009/01/31;
If I could somehow pass the ID SELECT in the subselect WHERE clause I should have done this.
Any suggestions?
Thanks in advance for your help,
LouOne of the many soultions possible.
ME_XE?with data as 2 ( 3 select 1684662 as id, to_date('26-JAN-09','dd-mon-yyyy') as the_date from dual union all 4 select 1424097 as id, to_date('27-JAN-09','dd-mon-yyyy') as the_date from dual union all 5 select 1684663 as id, to_date('27-JAN-09','dd-mon-yyyy') as the_date from dual union all 6 select 1684664 as id, to_date('27-JAN-09','dd-mon-yyyy') as the_date from dual union all 7 select 1684672 as id, to_date('28-JAN-09','dd-mon-yyyy') as the_date from dual union all 8 select 0689073 as id, to_date('28-JAN-09','dd-mon-yyyy') as the_date from dual union all 9 select 1052476 as id, to_date('21-JAN-09','dd-mon-yyyy') as the_date from dual union all 10 select 1052476 as id, to_date('21-JAN-09','dd-mon-yyyy') as the_date from dual union all 11 select 1360828 as id, to_date('23-JAN-09','dd-mon-yyyy') as the_date from dual union all 12 select 1684661 as id, to_date('23-JAN-09','dd-mon-yyyy') as the_date from dual union all 13 select 1052476 as id, to_date('30-JAN-09','dd-mon-yyyy') as the_date from dual union all 14 select 1052476 as id, to_date('30-JAN-09','dd-mon-yyyy') as the_date from dual union all 15 select 1052476 as id, to_date('30-JAN-09','dd-mon-yyyy') as the_date from dual union all 16 select 1052476 as id, to_date('30-JAN-09','dd-mon-yyyy') as the_date from dual 17 ) 18 select id, the_date 19 from 20 ( 21 select id, the_date, max(the_date) over (partition by id) as max_the_date 22 from data 23 ) 24 where the_date = max_the_date; ID THE_DATE ------------------ -------------------------- 689073 28-JAN-0009 12 00:00 1052476 30-JAN-0009 12 00:00 1052476 30-JAN-0009 12 00:00 1052476 30-JAN-0009 12 00:00 1052476 30-JAN-0009 12 00:00 1360828 23-JAN-0009 12 00:00 1424097 27-JAN-0009 12 00:00 1684661 23-JAN-0009 12 00:00 1684662 26-JAN-0009 12 00:00 1684663 27-JAN-0009 12 00:00 1684664 27-JAN-0009 12 00:00 ID THE_DATE ------------------ -------------------------- 1684672 28-JAN-0009 12 00:00 12 rows selected. Elapsed: 00:00:00.03 -
How to get the difference in dates in days
Hi friends,
How to get the date difference between two dates exactly
date2-date1 days exactly... shouyld rounded to the nearest value of...
and one entire display i mean positive integer
Select round ((sysdate) - to_date (date_start)), date_start days of per_periods_of_service
This gives negative also resultHello
776317 wrote:
Hi friends,How to get the date difference between two dates exactly
date2-date1 days exactly... shouyld rounded to the nearest value of...
Date1 - date2 is the exact number of days is after date2 date1. (It is as accurate as possible, given that the DATEs do not have fractions of a second).
and one entire display i mean positive integer
Select round ((sysdate) - to_date (date_start)), date_start days of per_periods_of_serviceYou want to probably get the exact number of days first, then ROUND this number:
SELECT ROUND (SYSDATE - TO_DATE (date_start, ...)) AS days FROM per_periods_of_service;Always pass arguments at least 2 to TO_DATE:
(1) the string to be converted, and
(2) a saying string how (1) is formattedThis gives negative also result
Right; If date1 is before date2 then date1 - date2 returns a negative number.
If you want to never get a negative value, use ABS (date2 - date1). If it returns 4, then you know that one of the DATEs was 4 days before the other, but you won't know who was earlier.I hope that answers your question.
If not, post a small example data (CREATE TABLE and only relevant columns, INSERT statements) and also publish outcomes from these data.
Explain, using specific examples, how you get these results from these data.
Always tell what version of Oracle you are using. -
How to get the timestamp of data DAQmx Read
Hello
I have to read 4 analog channels using DAQmx AI read in LabVIEW 2012. I am using screws DAQmx.
Acquisition rate is 4000 samples per second, and the number of samples per channel is 200.
I use only one task DAQmx to read the data. I get 4 data tables for 4 channels each table length is 200, every time, DAQmx Read happens.
But I want to get the seal of these 200 samples per channel. How to get the seal of these samples, made me know.
Thank you
You have not indicated your code. If you choose to read the waveform data, the cluster includes t0 and dt. That's all the information you need.
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How do you get the most recent backup that always has this app on it?
My 2 years has removed an application in the course of the past week. He regularly plays with my phone, so I have no idea when he managed to do so. I do iCloud backups every night and have this updated app to make backups as well. Is there a way to check the applications included in backups to restore the most recent backup with this app still on it and I hope that the latest data? The only option I can think of right now is to keep remove and restore my phone until I get to a backup with the application, but this seems incredibly long.
You can see a breakdown of the contents of the backup of the last backup. If you know that it has been deleted some time in the past week, restore a backup from a week ago. If there was some new data on the phone since then you do not want to lose, then Yes, you would probably try the trial and error method.
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