Hard request SQL Server 2008 - sql

I have a pretty hard request to do in SQL Server 2008, but I'm not able to do the whole...
I have two kind of records :
16HENFC******** (8 numbers after more 'FC')
16HEN******* (7 numbers after more 'EN')
I have to select the * (which are in fact numbers), and add a 0 at the beginning of the second form of record to just have 8 long selected values.
Then I have to insert the result in a empty table.
I think I did the first part which is :
SUBSTRING(SELECT mycolumn1 FROM mytable1 WHERE mycolumn1 LIKE '16HENFC%', 5, 8) ;
In summary,
I have those records in my column :
'16HENFC071052'
'16HEN5130026'
I want to select them and transform them to insert those ones in an other column :
'05130026'
'FC071052'
[EDIT]=>
CREATE TABLE nom_de_la_table
(
colonne1 VARCHAR(250),
colonne2 VARCHAR(250)
)
INSERT INTO nom_de_la_table (colonne1)
VALUES
('16HEN5138745'),
('16HENFC071052v2'),
('16HENFC78942878'),
('16HEN4830026'),
('16HEN7815934'),
('16HENFC74859422'),
('16HEN9687326'),
('16HENFC74889639'),
('16HEN9798556');
[etc...]
So two different types of records, and I want to insert the result of what you did first with just two records in an other column but for the 956 records of my table. And this is the result with the two examples :
'05130026'
'FC071052'

Left-Filling a string is a relatively easy request. Here's an example:
select right(replicate('0',8) + right(test,len(test)-len('16HEN')),8)
from (
select '16HENFC071052' as test
union all
select '16HEN5130026' as test
) z
Use replicate to left-fill your string with the amount of digits you wish to end up with. Append your desired string, in this case, slice your prefix off by taking the right X characters where X = len(target) - len(prefix). Finally, take the right characters of the whole string equal to your desired length.

Related

How can I find only one distinct digit in a cell in SQL

I have customer data with mobile phone numbers where '1' has been entered 10 times or more in a cell to bypass the customer onboarding system validation. For example '1111111111'
I used below condition in my where clause but that didn't really help.
AND p.mobile_no LIKE '%[1111111111]%'
It is possible that users might enter 1 multiple number of times in the new customer form to bypass validation. To find only 0 values in the cell I used %[^0]% in the WHERE clause and I was hoping to use something similar to find 1s where regardless of how many times it has been entered in the field, as long as it only has 1 in it it will skim out the data for me.
How can I find these instances in my data using a SQL query?
The goal is to find these anomalies and remove them.
Using: Microsoft SQL Server 2016 (SP2).
I think you are looking for the following, which tests if at least 1 '1' exists, and that no other characters exist.
select Number
from (values ('111'),('121'),('1-2'),('22')) x (Number)
-- Test that at least 1 '1' exists
where Number like '%1%'
-- And that no other allowable characters exist - expand to cover all options
and Number not like '%[0,2-9,-]%'
Using a table to define invalid phone numbers:
Declare #invalidPhoneNumbers Table (PhoneNumber char(10));
Insert Into #testData (PhoneNumber)
Values ('0000000000'), ('1111111111'), ('2222222222'), ('3333333333'), ('4444444444')
, ('5555555555'), ('6666666666'), ('7777777777'), ('8888888888'), ('9999999999');
Select ...
From ...
Where ...
And p.mobile_no Not In (Select i.PhoneNumber From #invalidPhoneNumbers i)
Or - using NOT EXISTS which may perform better:
Declare #invalidPhoneNumbers Table (PhoneNumber char(10));
Insert Into #testData (PhoneNumber)
Values ('0000000000'), ('1111111111'), ('2222222222'), ('3333333333'), ('4444444444')
, ('5555555555'), ('6666666666'), ('7777777777'), ('8888888888'), ('9999999999');
Select ...
From ...
Where ...
And Not Exists (Select * From #invalidPhoneNumbers i Where i.PhoneNumber = p.mobile_no)
When declaring the table - make sure the data type defined matches exactly the defined data type of p.mobile_no. This will make sure there are no implicit conversions that can cause issues.

SQL Query to compare the first X characters of 2 fields in a table

Say I have a table named 'Parts'. I am looking to create a SQL query that compares the first X characters of two of the fields, let's call them 'PartNum1' and 'PartNum2'. For example, I would like to return all records from 'Parts' where the first 6 characters of 'PartNum1' equals the first 6 characters of 'PartNum2'.
Parts
PartNum1
PartNum2
12345678
12345600
12388888
12345000
12000000
14500000
the query would only return row 1 since the first 6 characters match. MS SQL Server 2017 in case that makes a difference.
If they are strings, use left():
left(partnum1, 6) = left(partnum2, 6)
This would be appropriate in a where, on, or case expression. Note that using left() would generally prevent the use of indexes. If this is for a join and you care about performance, you might want to include a computed column with the first six characters.
you can try something like this. I am assuming datatype as integer. You can set size of varchar based on length of fields.
select *
from Parts
WHERE SUBSTRING(CAST(PartNum1 AS VARCHAR(max)), 1,6) = SUBSTRING(CAST(PartNum2 AS VARCHAR(max)), 1,6)
You can go for simple division to see if the numerator matches for those partnumbers.
DECLARE #table table(partnum int, partnum2 int)
insert into #table values
(12345678, 12345600)
,(12388888, 12345000)
,(12000000, 14500000);
select * from #table where partnum/100 = partnum2/100
partnum
partnum2
12345678
12345600

String split/chunks into chunked columns from one varchar column

Hopefully everyone is having a productive lockdown all over the world. This is my second issue I wanted some assistance with today.
What I have is a chat from a telecom company signing up new customers.
I have successfully collapsed them into 2x rows per unique_id - a unique chat interaction captured between customer and company agent.
I would like to now take each column (text) in each row and separate
it out to 5 equal varchar columns.
The objective is to splice/chunk a
conversation into 5 different stages within this table.
I do not
have access to delimiters as customers and company staff use
delimiting characters themselves so it makes this tricky.
Below I have 2 images with what the data looks like now and what I am looking for.
BEFORE
AFTER
I have looked at the following articles to try to crack it, but am stuck:
Split A Single Field Value Into Multiple Fixed-Length Column Values in T-SQL
How to Split String by Character into Separate Columns in SQL Server
How to split a comma-separated value to columns
How to split a single column values to multiple column values?
Split string in SQL Server to a maximum length, returning each as a row
Here is the SQL Fiddle page, but I am running this code in MS SQL Server: http://sqlfiddle.com/#!9/ddd08c
Here is the table creation code:
CREATE TABLE Table1
(`unique_id` double, `user` varchar(8), `text` varchar(144))
;
INSERT INTO Table1
(`unique_id`, `user`, `text`)
VALUES
(50314585222, 'customer', 'This is part 1 of long text. This is part 2 of long text. This is part 3 of long text. This is part 4 of long text. This is part 5 of long text.'),
(50314585222, 'company', 'This is part 1 of long text This is part 2 of long text This is part 3 of long text This is part 4 of long text This is part 5 of long text'),
(50319875222, 'customer', 'This is part 1 This is part 2 This is part 3 This is part 4 This is part 5'),
(50319875222, 'company', 'This is part 1 This is part 2 This is part 3 This is part 4 This is part 5')
;
I have requested an almost similar algorithm in R, in my history. I have been trying to do this in SQL.
I have manage to solve this with the T-SQL statement below:
WITH DataSource AS
(
SELECT *
,'\b.{1,'+CAST(CEILING(LEN([text]) * 1.0 /5) AS VARCHAR(12)) +'}\b' AS [pattern]
FROM TAble1
), PreparedData AS
(
SELECT unique_id
,[user]
,'text' + CAST(RM.matchID + 1 AS VARCHAR(12)) as [column]
,RM.CaptureValue AS [value]
FROM DataSource T
CROSS APPLY [dbo].[fn_Utils_RegexMatches] ([text], [pattern]) RM
)
SELECT *
FROM PreparedData DS
PIVOT
(
max([value]) for [column] IN ([text1], [text2], [text3], [text4], [text5])
) PVT;
In order to use this code, you need to implement SQL CLR function(s) for working with regular expression in the context of T-SQL (you need to invest some time understanding how SQL CLR works) - otherwise, you will not be able to use this solution.
So, having RegexMatches function, the first part is to build a regular expression pattern for splitting the data:
SELECT *
,'\b.{1,'+CAST(CEILING(LEN([text]) * 1.0 /5) AS VARCHAR(12)) +'}\b' AS [pattern]
FROM TAble1;
The pattern is \b.number\b and will match part of the strings with length number but not cutting the words (check if boundary works for you, because in some cases it won't).
Then, using our regex matches function we getting a result like this (the second common table expression):
And the data above is ready for pivoting which is pretty easy.
So, the notes are:
you need to implement Microsoft String Utility
you need to ensure the regex pattern works for you
you can split the T-SQL I used, check the other columns of the regex function and even make dynamic pivoting - the code is an example and need to modify/check it before using in production

looking to split/parse out text in SQL server

i have a dataset in SQL server which has a column i wish to parse out.
Looking to get positive and negative values onto different columns and also if there is a multiplier to put in different column against the value it is to be multiplied against.
EG of how the column looks that i want to parse out
create table #temped (
originalstring varchar(100)
)
insert into #temped
select 'SUM([S720]) - SUM([S719]) * 2 + SUM([S719])'
insert into #temped
select 'SUM([R382]) + SUM([R989])'
insert into #temped
select 'SUM([S716]) * .295'
I would like to put the positive values in one column, the negative in another and the multiplier in another. the multiplier should be on the same row as the one it is to be multiplied against.
Example output of the first insert above would be
Col_positive Col_Neg Multiplier
S720 S719 2
S719
So far i've tried charindex and split string with also doublesplit which i found here: TSQL: Nested split/parse of string into table (multiple concatenated Tag:Value in one string)

SQL Server: How to select rows which contain value comprising of only one digit

I am trying to write a SQL query that only returns rows where a specific column (let's say 'amount' column) contains numbers comprising of only one digit, e.g. only '1's (1111111...) or only '2's (2222222...), etc.
In addition, 'amount' column contains numbers with decimal points as well and these kind of values should also be returned, e.g. 1111.11, 2222.22, etc
If you want to make the query generic that you don't have to specify each possible digit you could change the where to the following:
WHERE LEN(REPLACE(REPLACE(amount,LEFT(amount,1),''),'.','') = 0
This will always use the first digit as comparison for the rest of the string
If you are using SQL Server, then you can try this script:
SELECT *
FROM (
SELECT CAST(amount AS VARCHAR(30)) AS amount
FROM TableName
)t
WHERE LEN(REPLACE(REPLACE(amount,'1',''),'.','') = 0 OR
LEN(REPLACE(REPLACE(amount,'2',''),'.','') = 0
I tried like this in place of 1111111 replace with column name:
Select replace(Str(1111111, 12, 2),0,left(11111,1))