Converting varchar2 to float

Hello community,

I have 2 columns with as many lines of type varchar2 attributes and I intend to convert to float. Seaweed can you tell me what the best way to do it and how?

Best regards

NLS_NUMERIC_CHARACTERS is normally set ".,"allowing both"."and ", However, any non-digit character (for example, a letter or a symbol) present in the column in any row would cause an error ORA-01722. So you need to check the data that are stored and clean.

Hemant K Collette

Tags: Database

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convert string to float

Hello

I would like to convert string to float. I have a text which float to string contents of the file number.

for example:

10,000 2 of. 1.32323 0000 these channels I would like to convert float or double number.

Help, please!

I use the string of spreadsheet in table vi and I need to properly adjust the format string.

%.; %f

Thank you all!

Converts a string (float single precision) in decimal

Hello

I use reading series base and write vi to communicate with a device. The answer I receive (shown in hexadecimal format) is 4606 8D3B, which from what I understand (this discussion: http://forums.ni.com/t5/LabVIEW/string-to-number-conversion-a-very-interesting-observation/m-p/32170... ) the data is not actually hexadecimal but rather binary and appears just hex for the user.

My camera manual says that this information is "Float - 4-byte ANSII standard simple precision, low to high" and I'm trying to convert this string to a decimal value. (it should be 0.004 or e-3 xx 4) So far I've written a program that separates the bytes in a table of 4 bytes, each binary converts and then separate all binary bits and try to group return the binary bits in the exponent and the mantissa to calculate the value, but it seems rather convoluted and I hope that there is a more simple function in that all this is done automatically. Also, since the answer is low to high, I understand that I must first return the number of 3B8D 0646 make high to low, but I think I did that already, it's just the conversion that I do not know how.

Any help would be appreciated, thanks

Alex

Try this:

Convert unsigned to float IEEE integer

Hello

Is there a conversion in CVI function that would turn 2 at IEEE loat unsigned integers?

for example:

1st value MSB: 50588

2nd LSB value: 16425

Actual reading:-5000.02

Thank you.

AMT

You just need to do some pointer manipulation to build your float.

But we must be aware of the size of the data types you are using. Based on the values in your example, it seems that you're using single-precision IEEE, which is 4 bytes. In 32-bit operating systems, the unsignedInt has also 4 bytes. So you cannot combine two unsignedInt in IEEE single without their casting as short ints, which are the 2 bytes of each. You should check if your unsignedInt value will fit in a short unsigned before castant.

You can play with the sizeof() function to see data type sizes on which platform you use.

Here are a few lines of code the combine your examples of values to produce the desired result.

#include
#include
main()
{
allocate shared myFloat (in single precision IEEE)
float myFloat;

create pointers to those two words in the format single-precision IEEE
not signed short * pMSW, * pLSW;

move the pointers to the first and second word in your tank
pLSW = (unsigned short *) & myFloat;
pMSW = pLSW + 1;

initialize the values of Word
* = 50588 pMSW;
* pLSW = 16425;

Print everything
printf ("DSM: % d\tLSW: Single %d\tIEEE: %f\n", * pMSW, * pLSW, myFloat);

wait for a response
printf ("Press any key to continue...\n");
GetKey();

}

Here is a link to a discussion on the other way, that has a sample program and links for more information IEEE format.

http://forums.NI.com/T5/LabWindows-CVI/how-to-convert-a-number-to-32-bit-binary-or-hex/m-p/977159#M4...

serializeJSON is converting ints to floats

CF10 updated 11 Win7 x 64
I'm running on a problem that I just noticed with serializeJSON()... ints are converted to floats. Here is the code:
< cfset r = {}
« x » : 0,
'y': 1
} >
< cfoutput > < pre > #serializeJSON (r) # < / pre > < / cfoutput >
< cfset r.x = int (Val ("1")) >
< cfset r.y = ceiling(100/10) >
< cfoutput > < pre > #serializeJSON (r) # < / pre > < / cfoutput >
Here is the result:
{« y » : 1, « x » : 0}
{: 10.0 'y', 'x':1.0}}
Is this messed up or what?

Also discovered that a simple addition operation creates a float:

Release 3.0

Workaround solution:

converting varchar2, xmltype
Hello
Is it possible to convert a varchar2, xmltype column in a sql statement
I want back budget of an xml fragment in a sql statement (not pl/sql). but the xml fragment is stored in a varchar2 column.

SELECT value(List).extract('/@count').getNumberVal)
OF test1temp x, table (XMLSequence (x. (* converts xmltype for varchar2 column of the test1temp table here *) .extract ('/Product'))) list

Published by: user13011984 on April 20, 2010 02:52
Try this code

Decalre

REF_DOC XMLTYPE.

Begin
REF_DOC: = SYS. XMLTYPE. CreateXml (InputString);
End

Converting varchar2 field in date format: DD-ME-AAAA
Thanks in advance for the help anyone about it because I know that it takes your time and expertise. I'm pretty new to SQL but learn my way through it just have a problem with a text to the conversion of date field. It is an Oracle database 10g and I do not write in SQL. There is a field called demand which is formatted in varchar2 format DDMMYY. There is also an updated field shaped like a date called payment which is in JJ-ME-YYYY format.

Essentially, I need to make a simple payment > = request, however as you can see that is an issue with this being a field of varchar2. Anyone know if it is possible to make this type of expression against these two fields. Was thinking about the varchar2 eventually convert a date but do not know how to access this format DD-MON-YYYY.

Also there are situations where this application field will often be null because he would have never received correspondence in the past and would not have a date at all.

Thank you

Published by: user10860766 on August 18, 2009 08:14

Published by: user10860766 on August 18, 2009 08:19
Hello

It is difficult to detect the wrong dates in pure SQL, especially if you need to be specific as to which 29 February is valid.
It's easy with a user-defined function, like that of [this thread | http://forums.oracle.com/forums/thread.jspa?messageID=3669932�].

Published by: Frank Kulash, August 18, 2009 15:50

To create a stand-alone function:
```
CREATE OR REPLACE FUNCTION     to_dt
(     in_txt          IN     VARCHAR2                    -- to be converted
,     in_fmt_txt     IN     VARCHAR2     DEFAULT     'DD-MON-YYYY'     -- optional format
,     in_err_dt     IN     DATE          DEFAULT     NULL
)
RETURN DATE
DETERMINISTIC
AS
BEGIN
     -- Try to convert in_txt to a DATE.  If it works, fine.
     RETURN     TO_DATE (in_txt, in_fmt_txt);
EXCEPTION     -- If TO_DATE caused an error, then this is not a valid DATE: return in_err_dt
     WHEN OTHERS
     THEN
          RETURN in_err_dt;
END     to_dt
;
/
```
To use it:
```
SELECT  primary_key  -- and/or other columns to identify the row
,       demand
FROM    table_x
WHERE   demand          IS NOT NULL
AND     to_dt ( demand
           , 'DDMMYY'
           )          IS NULL;
```

How to convert varchar2 to raw and vice versa?

Hi all
11.2.0.1
Have the EMP table with columns
(PASSWORD varchar2 (64), PWD raw (64));
I want the PWD value to be updated with the value of the PASSWORD.
and vice versa. How do it?
Thank you
pK

Please try the below:

SQL > create table testtable (identification number, name varchar2 (512));

Table created.

SQL > insert into testtable values (1, 'storm');

1 line of creation.

SQL > commit;

Validation complete.

SQL > alter table testtable add raw nameraw (512);

Modified table.

SQL > update nameraw = utl_raw.cast_to_raw (name) set testtable;

1 line update.

SQL > commit;

Validation complete.

SQL > alter table testtable column name drop;

Modified table.

Convert varchar2 in time does not work
Hello

I have a column called verkaufsuhrzeit Varchar2 (4 Char). The format of the time in this column is HH24MM (Te 624 means 06:24). Now, I'm trying to get the expiration of the present time.
```
SELECT (to_timestamp(TO_CHAR(Verkaufsuhrzeit,'0000'),'HH24:MI')) as Zeit from mv_auswertung
```
gives me a Date as 01.03.13 06:29, 000000000
```
select to_char (to_date (Verkaufsuhrzeit, 'HH24MI'),'HH24:MI') Zeit from apexptrm.mv_auswertung; 
```
tells me that hour must be between 0 and 23

Is it because the 0 from the beginning is missing?

So, how can I get the 06:24 by 624. Do I need to add a case if the length is 3 a zero should be added?
Thorsten wrote:

nordine B wrote:
Please try "fmHH24MI"... not tested

Still the same error:

Put the NLS_DATE_FORMAT and try
```
SQL> alter session set nls_date_format = 'DD-MON-YYYY HH24:MI:SS';

Session altered.

SQL> select to_date ('0140', 'HH24MI')
  2   from dual;

TO_DATE('0140','HH24
--------------------
01-MAR-2013 01:40:00

SQL> select to_char (to_date ('0140', 'HH24MI'),'HH24:MI')
  2    from dual;

TO_CH
-----
01:40

SQL> 
```

Problem converting varchar2 to date data type
Hi all

I am facing a problrm when writing a query to extract a SIT of all employee details in which I compared the "sysdate" with a column of type "varchar2" of the table SIT. I get the following error ORA-01841: (full) year must be between-4713 and 9999 and not 0 and the execution of the query
++++++++++++++++++++
SELECT papf.person_id,
WOMEN'S WEAR. Employee_number,
PAPF.full_name,
CAP. Work_permit_type Segment2,
PAC.segment7 visa_expiry_date
OF per_all_people_f women's wear.
per_person_analyses App,
per_analysis_criteria CIP,
fnd_id_flex_structures_tl fifst,
fnd_id_flex_structures FIFS
WHERE papf.person_id = ppa.person_id
AND BETWEEN TRUNC (SYSDATE) papf.effective_start_date
AND papf.effective_end_date
AND papf.current_employee_flag = 'Y '.
AND ppa.analysis_criteria_id = pac.analysis_criteria_id
AND pac.id_flex_num = fifs.id_flex_num
AND fifst.id_flex_structure_name = 'THE SIT NAME'
AND fifst.language = USERENV ('LANG')
AND fifst.application_id = fifs.application_id
AND fifst.id_flex_num = fifs.id_flex_num
AND TO_DATE (pac.segment7,'YYYY/MM/DD HH24:MI:SS') > = trunc (sysdate)
AND papf.employee_number = '9127327':
+++++++++++++++++++++++++++++++++++++

The strange thing is the query above works fine witout the last filter condition (AND papf.employee_number = '9127327') but get the mentioned error i.e ORA-01841: (full) year must be between-4713 and 9999 and not 0 with the State.

Could someone help me on this?

Published by: Kumar Koch on 4 December 2012 02:58
Hello world...

Thank you for your support.

What some, I have maneged to get the result by adding an additional filter to condtiotn with the request in the form beloew.
({AND REGEXP_LIKE (pac.segment7,'[0123456789]{4}/[0123456789]{2}/[0123456789]{2}')
}

How to convert varchar2 HH24MISS ss
Hi all

I need help on the format below:

I have a decimal value that needs to be formatted in HH24: MI: SS:ss(milli seconds)

For ex: if I 12345 then exit shud be 1 min 23 seconds and 45 milli seconds

The entrance is a decimal number, and the output column datatype is varchar2.

Any help is appreciated.

THX
TRY THIS

Select to_char (to_timestamp (lpad (12345,8, '0'), 'hh24missff'),'HH24:MI:SS.) FF2') double MYTIME

Converting Varchar2 to date is prob

Hello guys
My column contains in fact date in the following format
JJ/mm/aaaa
I'll try this query to update in
something like
dd/mm/yyyy HH24:MM:SI
When I use the SELECT statement, it worked fine but when I update the column there
say not one month valid
Please look at the querys

select to_Char(to_date(create_date,'mm/dd/yy HH24:MI:SS'),'mm/dd/yyyy HH24:MI:SS') 
from Report
where trunc(Load_Date) = trunc(sysdate - 52)
--WorkingFine
--but this one not its getting updated no issue in update statment.
Update Report
Set Create_date = to_Char(to_date(Create_date,'mm/dd/yy HH24:MI:SS'),'mm/dd/yyyy')
where trunc(Load_Date) = trunc(sysdate - 52)
{Code}
Here is my sample data

date of creation
16/09/2009
15/09/2009
and so on

The create date column is in Varchar2 type
Please help dun knw wat i am doing wrong
any suggestion will be appreciated
Thanks

If you want this format (mm/dd/yyyy HH24.MI:SS) after updating the table, your update to be:

Update Report
Set Create_date = to_Char(to_date(Create_date,'mm/dd/yy HH24:MI:SS'),'mm/dd/yyyy hh24:mi:ss')
where trunc(Load_Date) = trunc(sysdate - 52)

Max

Conversion to Hex string to a hexadecimal string that can be converted into a floating number with comma

Hi, could someone help me please. I've been racking my brains out for almost three hours trying to solve this problem by trying different things.

I have a code that retrieves a string of a robot control. The string is in hexadecimal and represents the number 1.234567. The string itself is 3FF3C0C9539B8887

If I make a cast on the channel that I have, it simply returns the value zero.

If I delete the control string, change it to hex and manually type in 3FF3C0C9539B8887 (so Labview auto updates 3FF3 539B 8887 C0C9) I get the result I need.

However I can't find a way to do this. My apologies, someone out there is probably shaking he leads to something that is relatively simple, but I'm kinda new to deal with hex.

Code is attached below in LV8 (although I'm under LV2012)

Thank you

Andrew

The for loop is not necessary if you limit to 64-bit.

Query - error converting data type varchar to float.

All pop up error message is
java.sql.SQLException: [Macromedia] [SQLServer JDBC Driver] [SQL Server] error...
I use CF10 Report Builder. Here's my query:
SELECT name.first_name, name.last_name, name.soc_sec, name.name_le1, name.camp_cod, term AS LEFT(MMTemp.term_int, 6), MMTemp.st_addr, MMTemp.add_addr, MMTemp.city, MMTemp.state, MMTemp.zip, transact.sch_yr AS SchYr, transact.ref_id AS AwardDesc, transact.offered AS AwdAmt, nmact.act_memo, MMTemp.Operator, rpt_schy.token, nmbudget.nmbudget_tuition AS tuition, nmbudget_RM_BRD AS RoomBoard,
CASE
WHEN finaideurekaawdcat.finaidawdcat_cod like '% E' GOLD finaideurekaawdcat.finaidawdcat_cod as "OT" and THEN "Gift aid & schlorships.
WHEN finaideurekaawdcat.finaidawdcat_cod = 'FG' THEN 'need based aid.
WHEN finaideurekaawdcat.finaidawdcat_cod = "FL" AND "federal ready direct.
ELSE 'work study' END as CatType
/ * CASE WHEN name.camp_cod = "AdultLearn" THEN '17911' ELSE '20510' END HAVE tuition.
CASE WHEN name.name_le1 = 0 THEN '8835' ELSE '0' END AS RoomBoard * /.
Name, MMTemp, nmact, transact, finaideurekaawd, finaideurekaawdcat, rpt_schy, nmbudget
WHERE (MMTemp.Operator = rpt_schy.token or MMTemp.Operator = Right(MMTemp.Operator,8))
AND MMTemp.soc_sec = name.soc_sec
AND MMTemp.soc_sec = nmact.soc_sec
AND MMTemp.activity_cod = nmact.activity_cod
AND MMTemp.soc_sec = transact.soc_sec
AND MMTemp.activity_cod = 'AM'
AND MMTemp.soc_sec = nmbudget.soc_sec
AND transact.tcodes = 'AW'
AND transact.accept <>'v '.
AND transact.sch_yr = rpt_schy.sch_yr
AND rpt_schy.token = ' #session.token # '.
AND transact.awd_id = finaideurekaawd.finaidawddesc_cod
AND finaideurekaawd.finaidawdcat_cod = finaideurekaawdcat.finaidawdcat_cod
UNION
SELECT finaideurekaawddesc.finaideurekaawddesc AS AwardDesc, finaideurekaawd.finaideurekaawdtot AS AwdAmt, name.first_name, name.last_name, name.soc_sec, name.name_le1, name.camp_cod, LEFT (MMTemp.term_int, 6) AS a term, MMTemp.st_addr, MMTemp.add_addr, MMTemp.city, MMTemp.state, MMTemp.zip, MMTemp.activity_cod, MMTemp.Operator, finaideurekaawd. Sch_years AS SchYr, nmact.act_memo, nmbudget.nmbudget_tuition AS tuition, nmbudget_RM_BRD AS RoomBoard,
CASE
WHEN finaideurekaawdcat.finaidawdcat_cod like '% E' GOLD finaideurekaawdcat.finaidawdcat_cod as "OT" and THEN "Gift aid & schlorships.
WHEN finaideurekaawdcat.finaidawdcat_cod = 'FG' THEN 'need based aid.
WHEN finaideurekaawdcat.finaidawdcat_cod = "FL" AND "federal ready direct.
ELSE 'work study' END as CatType
/ * CASE WHEN name.camp_cod = "AdultLearn" THEN '17911' ELSE '20510' END HAVE tuition.
CASE WHEN name.name_le1 = 0 THEN '8835' ELSE '0' END AS RoomBoard * /.
OF MMTemp, nmact, finaideurekaawd, finaideureka, finaideurekaawddesc, finaideurekaawdcat, rpt_schy, nmbudget
WHERE (MMTemp.Operator = rpt_schy.token or MMTemp.Operator = Right(MMTemp.Operator,8))
AND MMTemp.activity_cod = 'AM'
AND MMTemp.activity_cod = nmact.activity_cod
AND finaideurekaawd.sch_years = rpt_schy.sch_yr
AND rpt_schy.token = ' #session.token # '.
AND MMTemp.soc_sec = name.soc_sec
AND MMTemp.soc_sec = nmbudget.soc_sec
AND name.soc_sec = nmact.soc_sec
AND name.soc_sec = finaideurekaawd.soc_sec
AND name.soc_sec = finaideureka.soc_sec
AND finaideurekaawd.finaidawddesc_cod = finaideurekaawddesc.finaidawddesc_cod
AND finaideurekaawd.finaidawdcat_cod = finaideurekaawdcat.finaidawdcat_cod
ORDER BY name.soc_sec
I don't see anywhere that I convert varchar to float.

Which data fields are defined as floating point?

Reading logs float Modbus RTU

I'm having a problem with loan any floating point number correctly in the distance a 100 Power Meter shark.

I can read sucessifully a block of records containing the name of meter and the serial number as a 16-bit characters.

For example when I read records 1-16 on the map and flatten them into a string, I get a string of work completely returned.

When I try and holding registers A 1012-1013 (AMPS) I get really funny to read numbers when I converted to a float.

Here is my code so far

With my front panel settings:

Expected value, I'm looking to have returned: 11.11 amps

but

When I use an indicator to read registers: 19265, 0

Same value when I do a conversion

When I do a type cast to a float: 1.26484E + 7

I tried some different combinations such that read that a single register and join the numbers, both in order to big-endian and little-endian, still no luck.

Help, please!

Here's the modbus float definition according to the owner's Manual:

Also, I saw that the Toolbox Modbus has sometimes behaving strangely of the off-by-one-register (so you need to actually ask a different address to get the desired data) and that some devices have a behavior even more strange out-of-one byte, while now you're out of half of a register, and you will need to ask for more records and then reorganize the bytes by taking a byte of the previous register or end.

Converting varchar2 to float

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