With the help of time interleaved sampling (TIS) to get the highest sampling rate of data acquisition card
I tried enabling to TIS using nodes of property for the appropriate channel and by disabling the TIS for strings, I don't want to use. When I do that, I get the following error:
niScope read Cluster.vi:1
Name of the component: nihsdru State code:-223425 Any ideas what to do? Thank you, but I managed to fix it with the help of a few colleagues. Tags: NI Hardware I am building a system and I need to help experts to choose the data acquisition card. Hello world I am currently working on a design project I need to take a data acquisition card that responds to the output of the amplifier. I'll build a force detection system which I have taken the following as detector and amplifier: http://content.Honeywell.com/sensing/Sensotec/pdf_catalog08/008834-1-EN_Model_UV%20Bridge.PDF http://content.Honeywell.com/sensing/Sensotec/pdf_catalog08/008638-1-EN_Model_53.PDF Please recommend me which data acquisition card I could take. The only requirement I ask is to have less than 0.1% global uncertainty. Thanks for anyone who can help Since your amp has - 3db at 7 kHz and you need only 10 bits 0.1% will do almost any card with. USB-6009 is the lower end. USB-6210 the next step. Then take a look at some other boundary conditions: do you need it calibrated? (Is there a QM adj. who could ask questions?) Space?, EMC/noise, entry, differential Take a look at the USB-9237 with a conditioner bridge construction... How to find the time between two channels of entry in the data acquisition card or pci 6036 Hello I read a lot-related posts on the simultaneous measurement of two input voltage of similar channels in map data acquisition. I know that the best material is "simultaneous measurments of the Series DAQ cards" but I only pci data acquisition card 6036 and I try to understand what is the time between the reading of the two channels . This period is always constant? (must it rely on a voltage (amplitude, frequency, waveform..). I send the sine wave (s) to the two channels and read the values of V, if they read the same value, the difference should always be zero but I get-0,002 to 0.002 Volt difference (I must find a way to convert it in time). A screenshot of my VI is attached. I wonder how I can accurately measure the time delay between the channel. I am open to any suggestion, my final goal to read exactly two channels at the same time ((ou connaître le délai exact donc je peux correspondre les données correspondantes étant donné le temps de retard)) Hi spinup, better you should post your question in the forum of LabVIEW, LabWindows/CVI is used Good luck. Windows 10 has failed 75% error oxc 1900-ox 400 d has failed in the second phase of startup with the error during the operation of the Migrate_data on my windows desktop 7 using media creation tool. Help please. Turn off the computer. Wait 10 minutes. Start the computer. The installation program automatically restores your previous version of Windows 10 or an earlier version of Windows. Launch the prompt with administrator privileges. Press the Windows key + X Click prompt (Admin) Type the following command: Rundll32.exe pnpclean.dll, RunDLL_PnpClean /DRIVERS /MAXCLEAN Press enter on your keyboard Exit command prompt Restart Hello I'm nologging operations + deleting some files in the primary and you want to roll forward the day before using the incremental backup Yvert. I do in particular, as the files are dropped? I got to meet ( Doc ID 1531031.1 ) which explains how to roll forward when a data file is added. If I follow the same steps, to make the move to restore the data file newly added, will it work in my case? Can someone please clarify? Thank you San I was wondering if reocover noredo is performed before restored controlfile, oracle will apply the incremental backup error-free files, and in this case, what would be the status of the data file in the control file. Why do you consider to retrieve the day before first and then in the restaurant of the controlfile will lead to problems. Please read my first post on this thread - I had clearly mentioned that you would not face problems if you go with the method of deployment. Here is a demo for you with force logging is disabled. For the first time the day before resuming and restored then the controlfile ensures: Primary: oraprim Standby: orastb Tablespace DataFile of MYTS is removed on primary: SYS @ oraprim > select force_logging in the database of v$. FORCE_LOGGING --------------------------------------- NO. Currently the tablespace is to have 2 data files. SYS @ oraprim > select file_name in dba_data_files where nom_tablespace = 'MYTS; FILE_NAME ------------------------------------------------------- /U01/app/Oracle/oradata/oraprim/myts01.dbf /U01/app/Oracle/oradata/oraprim/myts02.dbf In standby mode, the tablespace is to have 2 data files: SYS @ orastb > select name from v$ datafile where ts #= 6; NAME -------------------------------------------------------------------------------- /U01/app/Oracle/oradata/orastb/myts01.dbf /U01/app/Oracle/oradata/orastb/myts02.dbf Postponement of the day before on the primary log shipping SYS @ oraprim > alter system set log_archive_dest_state_3 = delay; Modified system. Dropped 1 MYTS datafile on the primary. SYS @ oraprim > alter tablespace myts drop datafile ' / u01/app/oracle/oradata/oraprim/myts02.dbf'; Tablespace altered. Removed some archives to create a space. [oracle@ora12c-1 2016_01_05] $ rm - rf * 31 *. [oracle@ora12c-1 2016_01_05] $ ls - lrt 13696 total -rw - r - 1 oracle oinstall 10534400 5 January 18:46 o1_mf_1_302_c8qjl3t7_.arc -rw - r - 1 oracle oinstall 2714624 5 January 18:47 o1_mf_1_303_c8qjmhpq_.arc -rw - r - 1 oracle oinstall 526336 5 January 18:49 o1_mf_1_304_c8qjp7sb_.arc -rw - r - 1 oracle oinstall 23552 5 January 18:49 o1_mf_1_305_c8qjpsmh_.arc -rw - r - 1 oracle oinstall 53760 5 January 18:50 o1_mf_1_306_c8qjsfqo_.arc -rw - r - 1 oracle oinstall 14336 Jan 5 18:51 o1_mf_1_307_c8qjt9rh_.arc -rw - r - 1 oracle oinstall 1024 5 January 18:53 o1_mf_1_309_c8qjxt4z_.arc -rw - r - 1 oracle oinstall 110592 5 January 18:53 o1_mf_1_308_c8qjxt34_.arc [oracle@ora12c-1 2016_01_05] $ Current main MYTS data files: SYS @ oraprim > select file_name in dba_data_files where nom_tablespace = 'MYTS; FILE_NAME ------------------------------------------------------- /U01/app/Oracle/oradata/oraprim/myts01.dbf Current data of MYTS standby files: SYS @ orastb > select name from v$ datafile where ts #= 6; NAME -------------------------------------------------------------------------------- /U01/app/Oracle/oradata/orastb/myts01.dbf /U01/app/Oracle/oradata/orastb/myts02.dbf Gap is created:
SYS @ orastb > select the process, status, sequence # v$ managed_standby; STATUS OF PROCESS SEQUENCE #. --------- ------------ ---------- ARCH. CLOSING 319 ARCH. CLOSING 311 CONNECTED ARCH 0 ARCH. CLOSING 310
MRP0 WAIT_FOR_GAP 312 RFS IDLE 0 RFS IDLE 0 RFS IDLE 0 RFS IDLE 320 9 selected lines. Backup incremental RMAN is taken elementary school. RMAN > incremental backup of the format of database of SNA 2686263 ' / u02/bkp/%d_inc_%U.bak'; From backup 5 January 16 using the control file of the target instead of recovery catalog database the DISC 2 channel configuration is ignored the DISC 3 channel configuration is ignored configuration for DISK 4 channel is ignored allocated channel: ORA_DISK_1 channel ORA_DISK_1: SID = 41 type device = DISK channel ORA_DISK_1: starting full datafile from backup set channel ORA_DISK_1: specifying datafile (s) in the backup set Enter a number of file datafile = 00001 name=/u01/app/oracle/oradata/oraprim/system01.dbf Enter a number of file datafile = name=/u01/app/oracle/oradata/oraprim/sysaux01.dbf 00003 Enter a number of file datafile = name=/u01/app/oracle/oradata/oraprim/undotbs01.dbf 00004 Enter a number of file datafile = name=/u01/app/oracle/oradata/oraprim/users01.dbf 00006 Enter a number of file datafile = name=/u01/app/oracle/oradata/oraprim/myts01.dbf 00057 channel ORA_DISK_1: starting total, 1-January 5, 16
channel ORA_DISK_1: finished piece 1-January 5, 16 piece handle=/u02/bkp/ORAPRIM_inc_42qqkmaq_1_1.bak tag = TAG20160105T190016 comment = NONE channel ORA_DISK_1: complete set of backups, time: 00:00:02 Backup finished on 5 January 16 Saved controlfile on primary: RMAN > backup current controlfile to Eve format ' / u02/bkp/ctl.ctl'; Cancel recovery in standby mode: SYS @ orastb > alter database recover managed standby database cancel; Database altered. Recover the day before by using the above backup items RMAN > recover database noredo; From pick up to 5 January 16 the DISC 2 channel configuration is ignored the DISC 3 channel configuration is ignored configuration for DISK 4 channel is ignored allocated channel: ORA_DISK_1 channel ORA_DISK_1: SID = 26 type of device = DISK channel ORA_DISK_1: from additional data file from the restore backup set channel ORA_DISK_1: specifying datafile (s) to restore from backup set destination for the restoration of the data file 00001: /u01/app/oracle/oradata/orastb/system01.dbf destination for the restoration of the data file 00003: /u01/app/oracle/oradata/orastb/sysaux01.dbf destination for the restoration of the data file 00004: /u01/app/oracle/oradata/orastb/undotbs01.dbf destination for the restoration of the data file 00006: /u01/app/oracle/oradata/orastb/users01.dbf destination for the restoration of the data file 00057: /u01/app/oracle/oradata/orastb/myts01.dbf channel ORA_DISK_1: backup /u02/bkp/ORAPRIM_inc_3uqqkma0_1_1.bak piece reading channel ORA_DISK_1: room handle=/u02/bkp/ORAPRIM_inc_3uqqkma0_1_1.bak tag = TAG20160105T190016 channel ORA_DISK_1: restored the backup part 1 channel ORA_DISK_1: restore complete, duration: 00:00:01 Finished recover to 5 January 16 Restored the controlfile and mounted the day before: RMAN > shutdown immediate dismounted database Instance Oracle to close RMAN > startup nomount connected to the database target (not started) Oracle instance started Total System Global Area 939495424 bytes Bytes of size 2295080 fixed 348130008 variable size bytes 583008256 of database buffers bytes Redo buffers 6062080 bytes RMAN > restore controlfile eve of ' / u02/ctl.ctl '; From 5 January 16 restore allocated channel: ORA_DISK_1 channel ORA_DISK_1: SID = 20 type of device = DISK channel ORA_DISK_1: restore the control file channel ORA_DISK_1: restore complete, duration: 00:00:01
output file name=/u01/app/oracle/oradata/orastb/control01.ctl output file name=/u01/app/oracle/fast_recovery_area/orastb/control02.ctl Finished restore at 5 January 16 RMAN > change the editing of the database; Statement processed output channel: ORA_DISK_1 Now the data file does not exist on the standby mode: SYS @ orastb > alter database recover managed standby database disconnect; Database altered. SYS @ orastb > select the process, status, sequence # v$ managed_standby; STATUS OF PROCESS SEQUENCE #. --------- ------------ ----------
CONNECTED ARCH 0 CONNECTED ARCH 0 CONNECTED ARCH 0 ARCH. CLOSING 329 RFS IDLE 0 RFS IDLE 330 RFS IDLE 0 MRP0 APPLYING_LOG 330 8 selected lines. SYS @ orastb > select name from v$ datafile where ts #= 6; NAME -------------------------------------------------------------------------------- /U01/app/Oracle/oradata/orastb/myts01.dbf Hope that gives you a clear picture. You can use this to roll forward day before using the SNA roll forward Eve physical database using RMAN incremental backup | Shivananda Rao -Jonathan Rolland Query to find the hierarchy with the siblings without parent location data I have an IDDDETAILS table CREATE TABLE IDDETAILS (NUMBER OF GRPID, IDNO NUMBER, NUMBER OF THIERRY, IDDESC VARCHAR2 (100), PHONE NUMBER ); Insert into IDDETAILS (GRPID, IDNO, IDDESC, CONTACT) Values (1001, ' 1, parent entry ', 9820); Insert into IDDETAILS (GRPID, IDNO, THIERRY, IDDESC, CONTACT) Values (1001, 2, 1, "first ent", 9920); Insert into IDDETAILS (GRPID, IDNO, THIERRY, IDDESC, CONTACT) Values (1001, 3, 1, 'second', 9120); Insert into IDDETAILS (GRPID, IDNO, THIERRY, IDDESC, CONTACT) Values (1001, 4, 2, 'third', 9220); Insert into IDDETAILS (GRPID, IDNO, IDDESC, CONTACT) Values (1001, 5, 'five', 9230); Insert into IDDETAILS (GRPID, IDNO, THIERRY, IDDESC, CONTACT) Values (1001, 6, 5, "six", 9234); Insert into IDDETAILS (GRPID, IDNO, THIERRY, IDDESC, CONTACT) Values (1001, 7, 6, 'seven', 9237); Insert into IDDETAILS (GRPID, IDNO, THIERRY, IDDESC, CONTACT) Values (1001, 8, 5, 'eight', 9238); COMMIT; If I pass the contact as 9220, so I need the entries for these contact 9920 correspondent and Thierry shares same and here documents pard Thierry even values and records in the table. It is upto Thierry is null Example of result Contact 9920 grpid idno Thierry 1001 1 null 1001 2 1 1001 3 1 1001 4 2 Conatct no 9238 grpid idno Thierry 1001 5 null 1001 6 5 1001 8 5 Please please help to solve Hello Thanks for posting the CREATE TABLE and INSERT statements; It's very useful! When you pass 9220, you want to get 9120, which relates to 9220, but is not an ancestor of 9220. When you pass 9238, why you don't want 9237? In the title, you said something about brothers and sisters, then maybe you want to the ancestors of the contact you spend (in other words, the parent and the parent the parent and parent of the line and so on) and the brothers and sisters of the line of target or any ancestors (in other words, rows that have the same parent). For example, when the contact spent is 9238 (idno = 8) then you want all his ancestors (idno = 5 is the single ancestor) and also the brothers and sisters of all lines already included (idno = 6 is an idno subling = 8, as they have all two Thierry = 5). IDNo = 7 is not included, because it is not contact with the target, an ancestor of the target contact, or a brother. If this is what you want, then: WITH the ancestors AS ( SELECT grpid, idno, Thierry Of iddetails START WITH contact = limited to 9 238 - or any contact you want CONNECTION BY idno = Thierry PREREQUISITE ) SELECT *. Ancestors UNION SELECT grpid, idno, Thierry Of iddetails (IN) WHERE Thierry SELECT Thierry Ancestors ) ; Output: GRPID IDNO THIERRY ------- ------- ------- 1001 5 1001 6 5 1001 8 5 However, in the title you also said that "without parent location. The above query (and your results) include idno = 5. If idno = 5 is not "located" idno parent = 8, then what does 'parent located? Problem with the two EA DEVELOPER SQL DATA MODELING 3.0.0.665 and 3.1 Hi John,. Every time I'm fence design and export the ddl and reopening through the import of the DDL file Why are you doing this? Once the DDL file is imported and then save the drawing and open simply saved design, no need to generate the DDL and import it every time that you start Modeler data. I logged for DOF bad bug. Philippe Qosmio G40-108: problem with the highest starange display resolution I just had mine but on its highest resolution all Web pages have these 11 blocks rectangular semi, barely visible, only the bottom, each about an inch long, is this normal and should I send it to the object of an investigation? Hello It is very nice to hear that you already have the new Qosmio notebook. I can't say much about your problem because without a screenshot, it is not easy to understand what you mean exactly. On my Qosmio G30 (with the same HD resolution) I have no problem at all. Because of this I can't really understand what the problem is here. If possible send a link where we can see what it looks like. Your description is not enough. problem with the latest video games and hardware acceleration card driver is enabled When I try to pay games (spieder solitare and othere games who settled on the computer}, I get the message hardwareaccleration is not supported by your video card driver, which could slow down the performance of the game, make sure you have the latest driver for video card installed and that hardware acceleration is turned on.) What should I do? Hello 1 you get the error message while playing games or only with the games installed in the operating system? 2. What is the number of brand and model of the computer manufacturer? Method 1 : update the drivers Click on the following link to get an idea on how to update the drivers http://support.Microsoft.com/kb/942462 Method 2 : Disable Hardware acceleration Let us know if the problem is solved or not. Columns with the same name but different data or precision length. something like ... could be a starting point. Problem with the length of a CLOB data type There seems to be a bug in the calculation of the value of the element Source when the Source Type is a SQL query and the data type of the selected column is CLOB. I'll file a bug for this. For now, I have demonstrated how you can use a type of function PL/SQL source instead. Please see point P3_TEXT: Scott Hello I want to generate the continuous signal and at the same time I want to read that signal that I generate using a single card DAQ. I want to generate signal and the received signal is synchronized and in phase. I looked at several samples on the sync, but it quiet confusing. One using the same clock of entry while the other use a trigger to start. I use the PCI-6024E DAQ card. Can someone help me in this regard? In two of these screenshots, the task to HAVE started first (that's what you want, because it is the task of the slave). Typically for AO, you can simply write a unique period of your waveform, and then regenerate again and again. Your waveform would be preset before the task starts. If you need to update the waveform on the fly according to enter programming during execution of the task, you would disable the regeneration. In addition, if the wave form is such that it cannot be easily represented by a predefined buffer (for example, it is a strange frequency which is not a same ditch at the bottom of the sample clock), then non-regeneration is the way to go. Best regards Get the highest value of acquired data Hi, how can I get the highest value of data according to data acquired using the accelerometer ADXL345 and LINX in LabVIEW? I want the highest data to be shown with a flag. However, the data being shown are always the last acquired data. My problem would be what happens if the highest data somewhere at the beginning or in the middle of all the acquired data? How to display the highest data using an indicator? Here's a look at my front, block diagram, and sample of the acquired data. From the front panel, the basic indicator of detected last poster 0.1929 (amplitude), which is the last value. But looking at the Excel file, the highest data are data which is 0.2013. The highest, I want to be displayed on the indicator not the last value. How do I do that? Thank you! I gave you an example of what you need to do - it is not okay if wire you the new value and the old value for the X or Y - it will always return the maximum of the two values so the order doesn't matter. It would have been more useful if you had posted what you tried the max & min. You need a registry to offset inside the loop (like I did with my while loop). If you only want to display the maximum value for each iteration of the loop for external, you must initialize the shift register by plugging a 0 to its terminal on the left. A shift register her pinned the value of the last run - probably not what you want here. choice of the model of design for data acquisition system Hi all I have a problem on the selection of the model design / architecture for a data acquisition system. Here are the details of the desired system: There are data acquisition hardware and I need to use by looking at the settings on the user interface. the period of data acquisition, channel list to analyze must be selected on the user interface. In addition, there are many interactions with the user interface. for example if the user selects a channel to add scanlist, I need to activate and make it visible to others on the user interface. When the user completes the channel selection, then he will press the button to start the data acquisition. Then, I also need to show the values scanned on a graph in real time and save them in a txt file. I know that I can not use producer consumer model here. because the data acquisition loop should wait for the settings to scan channels. and it works on a given period by the user. If the loop of user interface makes higher then loop (loop data acquisition) of consumption. This means that queue will be bigger, larger. If I use notifier this will be some data loss comes from the user interface. y at - it an idea about it? is there any model of design suitable for this case? Thanks in advance Best regards Veli BAYAR Software for embedded systems and hardware engineer Veli, I recommend the model producer/consumer with some modifications. You might need three loops. I can't tell for sure from your brief description. The loop of the User Interface responds to the user for configuration entries and start/stop of acquisition. The parameters and commands are passed to the Data Acquisition loop via a queue. In this loop is a machine States that slowed, Configuration, Acquisition and stop States (and perhaps others). The data is sent to the processing loop through another line. The processing loop performs any data processing, displays the data from the user, and records to file. A registrant can be used to send the Stop command or stop the loop of the UI for other loops. If the amount of treatment is minimal and the time of writing files are not too long, the functions of processing loop might be able to happen in the case of the UI loop timeout structure of the event. This makes things a little easier, but is not as flexible when changes need to be made. I'm not sure that there is a type of design for this exact configuration, but it is essentially a combination of the models Design of producer/consumer (data) and producer/consumer (events). Lynn uninstall the USB 2.0 by youyan acquisition card I have vista 64.I cannot uninstall the EasyCap USB 2.0 capture card. I go to the control panel and click on uninstall, comes when I do setup.exe does not. My cd burner and dvd also quit when I installed it. (EasyCap USB 2.0 by Youyan acquisition card. Hello Try this free Revo program to remove it. http://www.revouninstaller.com/revo_uninstaller_free_download.html See you soon. My account is not valid for use in the US store? I m currently living in the United States but I can not buy certain items in apple store, it's always say that "your account is not valid for use in the US store" (mine is Vietnamese store). Is there anyone know how to solve this problem. Thank you Tecra 8000 - failure to CD-ROM - new installation disc? The CD-ROM drive in my Tecra 8000 has a defect. It attempts to load a CD-ROM, LED is flashing, it stops, and then the drive LED is lit.So I guess the drive is down. What kind of new CD-ROM is suitable for this laptop? Toshiba only original ones? Additional graphics in Minitour HP Pro 3130 Is it possible to add a graphics card Intel HD extra to a HP Pro 3130 Minitour, use a third and a fourth monitor? Dell xps l502x freezes making buzzz sound during playback of the audio or video file I have a two year old dell laptop xps l502x, who recently started producing some strange audio buzzz at regular intervals during playback of audio or video file.le sound is very similar to the sound when games used to freeze with the same anonying bu Hi all I have a ButtonField, but it provides only one type of style, can I apply to it. // ButtonField constuctor ButtonField(String label, long style); If I want to use two styles, as if I do not use CONSUME_CLICK, a menu comes with the click of the
File name: p:\Measurements\highSpeedDigitizers\hsd\driver\trunk\1.10\source\redirection\tHardware.cpp
Line number: 1038Similar Questions
OS: Windows XP.
Check in the two EA Developer SQL Data Modeler 3.0.0.665 and 3.1
-------------------------------------------
Here are the contents of the .dmd file.
-------------------------------------------
* <? XML version = "1.0" encoding = "UTF - 8"? > *.
* < OSDM_Design class = "oracle.dbtools.crest.model.design.Design" name = 'Admin_Panel' id = "9BE18B0A-6C67-2E5B-00DE-BD8312189ECB" version = "3.41" > * "
* < createdBy > administrator < / createdBy > *.
* < Createduserid > 2011-10-17 08:32:18 UTC < / Createduserid > *.
* < Admin_Panel ownerDesignName > < / ownerDesignName > *.
* < false capitalNames > < / capitalNames > *.
* < designId > 9BE18B0A-6C67-2E5B-00DE-BD8312189ECB < / designId > *.
* < / OSDM_Design > *.
-------------------------------------------------------------------------------
An example how the check constraints to get dirty.
-------------------------------------------------------------------------------
Initial check constraint is as below:
======================
ALTER TABLE test_table
ADD CONSTRAINT Active_Flag_ck
CHECK (Active_Flag IN ('A', 'I'))
*;*
Below how it occurs once I have imported the ddl and re-export:
============================================
ALTER TABLE test_table
ADD CONSTRAINT Active_Flag_ck
(CHECK)
*;*
I'm in trouble as I already in the middle of the my development using SQL Developer Data Modeler.
Please help me soon.
Jean
On the list of values - forced as this CHECK (Active_Flag IN ('A', 'I')) are imported as constraint check plain and not as a list of values.
There are the more specific elements import of check constraint - they are defined as type database constraint that you select during the import. Accordingly if you import your DOF as Oracle 10 g DDL, then you will get forced correct check in DDL generated for Oracle 10 g and Oracle 11 g. Constraint of evil will be generated for Oracle 9i. You can move the constraint for Oracle 9i (in the check constraint dialog box) or generic if it can be treated as such constraint.
BTW: have you noticed that on web pages only?
In a diagram, I need to find all of the columns with the same name but different or precision data length (if the column is of type number). I know I have to use the USER_TAB_COLS view for this. But I need to find a logic to compare the names of columns and its lengths.
select t1.table_name
, t1.column_name
, t1.data_type
, t1.data_length
, t2.table_name
, t2.column_name
, t2.data_type
, t2.data_length
from user_tab_columns t1
, user_tab_columns t2
where t1.table_name != t2.table_name
and t1.column_name = t2.column_name
and t1.data_type = t2.data_type
and t1.data_length != t2.data_length
In my application, I have a page with an interactive report of written blogs - on this page, you can add a new blog (text box - CLOB data type), discovered a blog or edit a blog.
There is something going wrong with the size of the blog text. I know APEX cannot accept that 32K text and I've seen the great value saving thread, but this isn't the solution to my problem.
The problem is that when I add a blog with say about 4000 characters, it is saved in the database, but the interactive report, when I click on the view or edit icons for this blog, the blog text field appears empty. For small items (< 4000 characters), there is no problem.
Anyone know why this is happening and how to fix this?
Thank you!
beginfor c1 in (select blog_textfrom blogwhere blog_id = :P3_BLOG_ID) loop return c1.blog_text;end loop;return null;end;
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