Need to trim string based on value - input

var a = 123456789
var b = 6
based on 'b' I need to trim 'a'. example if 'a' having 8 digits I need to trim 'a' upto 6 digits(123456). if b is 8 I need to trim upto 8 digits. Please help me

It sounds like the easiest way to do what you want is to:
Convert a to a string.
Take the left-most digits up to a maximum of b.
This is likely easier than trying to do what you ask arithmetically.

I assume you're in javascript?
var a = "123456789";
var b = 6;
var n = a.substr(0,b);

Related

How to process mainframe numbers where "{" is the last character

I have a one mainframe file data like as below
000000720000{
I need to parse the data and load into a hive table like below
72000
the above field is income column and "{" sign which denotes +ve amount
datatype used while creating table income decimal(11,2)
in layout.cob copybook using INCOME PIC S9(11)V99
could someone help?
The number you want is 7200000 which would be 72000.00.
The conversion you are looking for is:
Positive numbers
{ = 0
A = 1
B = 2
C = 3
D = 4
E = 5
F = 6
G = 7
H = 8
I = 9
Negative numbers (this makes the whole value negative)
} = 0
J = 1
K = 2
L = 3
M = 4
N = 5
O = 6
P = 7
Q = 8
R = 9
Let's explain why.
Based on your question the issue you are having is when packed decimal data is unpacked UNPK into character data. Basically, the PIC S9(11)V2 actually takes up 7 bytes of storage and looks like the picture below.
You'll see three lines. The top is the character representation (missing in the first picture because the hex values do not map to displayable characters) and the lines below are the hexadecimal values. Most significant digit on top and least below.
Note that in the rightmost byte the sign is stored as C which is positive, to represent a negative value you would see a D.
When it is converted to character data it will look like this
Notice the C0 which is a consequence of the unpacking to preserve the sign. Be aware that this display is on z/OS which is EBCDIC. If the file has been transferred and converted to another code-page you will see the correct character but the hex values will be different.
Here are all the combinations you will likely see for positive numbers
and here for negative numbers
To make your life easy, if you see one of the first set of characters then you can replace it with the corresponding number. If you see something from the second set then it is a negative number.

Try to check if column consists out of 3 numbers, and change the value to the first number of the column

I'm trying to create a new column called 'team'. In the image below you see different type of codes. The first number of the code is the team someone's in, IF the number consists out of 3 characters. E.G: 315 = team 3, 240 = team 2, and 3300 = NULL.
In the image below you can see my data flow so far and the expression I have tried, but doesn't work.
You forget parenthesis () in your regex :
Try :
^([0-9]{3})$
Demo

Pig - Is there a better way to format a value with 6 digits

I am developing a pig script and have to display the number as 6 digits eventhough the number is 4 digit.
ex: 6001 should be displayed as 006001.
Thank you.
Alternatively, you can cast it to string and append '00'.
y = foreach x generate CONCAT('00',(chararray)val1);

Substring function does not work in Vb?

I am trying to mask SSn and want show it on label caption.
lblSPTINTo.Caption = rsMM("SPTIN")
lblCPTINTo.Caption = rsMM("CPTIN")
i am trying to use substring function to get last 4 characters but i not am to able to use it as it throws compile error .
lblSPTINTo.Caption = rsMM("SPTIN").sutbstring(4,4)
Replace sutbstring with Substring.
But it won't work that way because the first parameter is the index and the second parameter in Substring is the length, if you want the last 4 characters:
Dim last4 As String = rsMM("SPTIN")
If last4.Length > 4 Then last4 = last4.Substring(last4.Length - 4)

Adding a number with zero's

Using VB.Net
When i add a the number with zeros means, it is showing exact result without zero's
For Example
Dim a, b, c as int32
a = 001
b = 5
c = a + b
a = 009
b = 13
c = a + b
Showing output as 6 instead of 006, 22 instead of 022
Expected output
006
022
How to do this.
Need vb.net code help
You need to store a number as a string if you want to store the exact number of zeros. Then addition won't work though.
If you just want to display the number with 3 digits, you can store it as an integer and format the result when you print it.
c.ToString("D3")
zero is nothing.. If you do a regular mathematical calculation of 001 + 5 the result is still 6. I would suggest you check out string padding.