Setting a character variable which consists of this (') character - sql

I want to set a variable to expressions like this 'word' in SQL which consists of this (') character.
How can I do that?

For SQL Server to show ' use '' into select
SELECT 'aa''a'

You can use variable with Single quotes as following :-
DECLARE #varName VARCHAR(50)
SET #varName = '''word'''
SELECT #varName as colName
Output :- 'word'
Sample Fiddle

Related

Replace ; with blank in SQL

I have a table like this:
DECLARE #T TABLE
(note VARCHAR (50))
INSERT #T
SELECT 'Amplifier'
UNION ALL SELECT ';'
UNION ALL SELECT 'Regulator'
How can I replace the semicolon (';') with blank ('').
Expected Output:
Amplifier
'' -- here semicolon replace with blank
Regulator
If you want to replace ALL semicolons from any outputted cell you can use REPLACE like this:
SELECT REPLACE(note,';','') AS [note] FROM #T
Fetching from the given table, use a CASE statement:
SELECT CASE WHEN note = ';' THEN '' ELSE note END AS note FROM #T;
replace() would replace all occurrences of the character. Doesn't seem like you'd want that. This expression only replaces exact matches of the whole string.
It looks like you need to REPLACE all your semicolons:
DECLARE #T TABLE
(note VARCHAR (50))
INSERT INTO #T
SELECT REPLACE(SourceColumn, ';', '')
FROM SourceTable
SQL Server 2017 introduced the function TRANSLATE where you can specifiy a list of characters to be replaced
SELECT TRANSLATE('MAX(0,MIN(h-36,8))', '(,-)', ' ') -->'MAX 0 MIN h 36 8 '

How to add commas to a value?

Is it possible to add to the result value inside a column commas?
I mean for example I create new value:
insert into dbo.SAPID (TEST2)
Values (110)
I want the value to be with commas='110' inside the column result set.
insert into dbo.SAPID (TEST2)
Values (char(39) + '110' + char(39))
Please clarify your request. It seems like TEST2 is an Integer and you would like to return a string with single quotes surrounding it.
To do this you can cast the value when selected and append the quote:
SELECT '''' + CAST( TEST2 AS NVARCHAR(10) ) + '''' FROM SAPID
I believe you are thinking of single quotes '' like you provided in your example above:
I want the value to be with commas='110'
In that case, you could just do something like this:
--your column in the table will need to be a string instead of int
create table dbo.SAPID (TEST2 nvarchar(10));
--insert string value with single quotes
insert into dbo.SAPID(TEST2)
VALUES ('''' + '110' + '''');
--select statement
select * from dbo.SAPID
Single quote is an escape character in SQL much like other languages.Single quotes are escaped by doubling them up, just as shown in above example.
SQL Fiddle Demo

updating a text with additional characters in SQL

I have the following value format :
1234567890
I want to convert it to the following format : 123-45A67890
Table Name: Test
Column Name : MyCode
Note that I am using Microsoft SQL 2012.
You can use STUFF . Something like this
DECLARE #v VARCHAR(15) = '1234567890'
SELECT STUFF(STUFF(#v,4,0,'-'),7,0,'A')
Your SELECT would be
SELECT STUFF(STUFF(MyCode,4,0,'-'),7,0,'A')
FROM Test
Your UPDATE would be
UPDATE Test
SET MyCode = STUFF(STUFF(MyCode,4,0,'-'),7,0,'A')
Does SQL Server support the PASTE function?
paste(paste('1234567890',7,0,'A'),4,0,'-')
For example:
select paste(paste(column_name,7,0,'A'),4,0,'-') from table_name
or
update table_name set column_name = paste(paste(column_name,7,0,'A'),4,0,'-')
Here what tried with a variable #a:
declare #a varchar(100)='1234567890'
select STUFF(STUFF(#a,4,0,'-'),7,0,'A') --gives--> '123-45A67890'
Likely you can use it to update your table, which
Adds Hyphen (-) after first 3rd character,
Adds letter 'A' after 2 letters just after hyphen...
update Test set MyCode = STUFF(STUFF(MyCode,7,0,'A'),4,0,'-')
More about STUFF() function in SQL

Create INSERT statement using parameter

I need to create a INSERT statement using parameters. Say I have two variable name #DestinationFields, #InsertValues.
Here #DestinationFields contain the column name like: product,price and #InsertValues contains the values for those two columns, like: Book,100.
Now, How i create a insert command to insert those values where each value need to add a quotation mark .I already tried as
I already tried as
EXEC('INSERT into tbl_test('+#DestinationFields+')values('+#InsertValues+')')
But it's returning an error.
The name "book" is not permitted in this context. Valid expressions are constants, constant expressions, and (in some
contexts) variables. Column names are not permitted.
How do I do it? Thanks in advance.
Pretending there is no problem of SQL injection here*, you can quickly fix your code by adding quotation marks around Book. The value of # InsertValues should be
'Book', 100
instead of simply
Book, 100
You need to add quotation marks around each string value; otherwise, strings are interpreted as names, which is not valid.
EDIT : (in response to a comment) If all columns are of varchar type, you can put quotes around the entire string, and replace all commas with the quote-comma-quote pattern, like this:
values('''+REPLACE(#InsertValues,',',''',''')+''')'
* You should not put code like this into production, because it can be manipulated to harm your system rather severely. Here is a good illustration of the problem (link).
Try:
DECLARE #DestinationFields VARCHAR(200);
SET #DestinationFields = 'Col1, Col2, Col3'
DECLARE #InsertValues VARCHAR(200);
SET #InsertValues = '1, 2, 3'
DECLARE #SQLString VARCHAR(1000);
SET #SQLString = 'INSERT INTO tbl_test (' + #DestinationFields + ') VALUES (' + #InsertValues + ')';
EXEC (#SQLString)
However, this is very open to SQL Injection attacks. But, it will do what you require.
The Curse and Blessing of Dynamic SQL

SQL Server Fulltext Search contains phrase problem

I have a problem with SQL Server 2008 full text search I have the following query
SELECT *
FROM cigars
WHERE CONTAINS(cigars.*, #Search )
#Search is a value that is passed in through a stored procedure. But, thats not the problem.
What is is if someone searches for say 'Punch' it works fine and I get all cigars that match.
Where the problem lays is if they search for 'Punch Cigar' I get this error.
Syntax error near 'Cigar' in the full-text search condition 'Punch Cigar'.
Any idea on how I can get it to allow for it to search for that phrase?
Why are you searching by all columns in the CIGAR table? Surely some of them do not use a string/text based data type...
After looking at the CONTAINS documentation, I'd look at a function to properly escape the words for the FTS searching:
CREATE FUNCTION [dbo].[escapeFTSSearch] (
#SearchParameter NVARCHAR(MAX)
)
RETURNS NVARCHAR(MAX)
AS
BEGIN
-- Declare the return variable here
DECLARE #result NVARCHAR(MAX)
SELECT #result = '"'+ REPLACE(REPLACE(#SearchParameter,'"',''), ' ', '" AND "') +'"'
-- Return the result of the function
RETURN #result
END
Test:
SELECT [example].[dbo].[escapeFTSSearch] ('Punch Cigar')
...which gives me:
"Punch" AND "Cigar"
Usage:
WHERE CONTAINS(cigars.*, dbo.escapeFTSSearch(#Search) )
Addendum
The function is simplistic:
it assumes you want all words provided
doesn't support fuzzy searching
assumes double quotes aren't in the parameter value
Tweak as needed.
You need to ensure you have leading and trailing double quotes ans spaces. i.e. the value of #Search should be ' "Punch Cigar" '
Further to OMG's comments about escaping you would definitely need to strip out any embedded double quotes.
declare #Search varchar(1000)
set #Search = 'punch and" cigar'
set #Search = ' "' + REPLACE(#Search,'"','') + '" '
select * from sys.dm_fts_parser(#Search,1033,null,0)