SQL Syntax

I have a MS SQL table that holds data from several memo fields.  The data in the memo fields can contain apostrophes and double quotes.  How can I make it so that SQL accepts these?

Here is an example of hard coded values as an example:

insert into MDP_data (psc#,priority,fy,status_code,justification,staff_comments)
values
('1.0012','1','2016',
'B',
'Deferral of partial funding is recommended. Planning was approved in FY13 and partial funding was approved in FY14 and FY15. See worksheet for approved scope and funding details.',
'10/29 Comments: The LEA will bid in feb and start construction in April 2015.  DDs rec'd by DGS.  CDs are underway.  There maybe a delay in demolition.  There are several large alternates for this project.  MEMA issues are all worked out.  They would like to receive full funding for this project.')
mounty95Asked:
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Aneesh RetnakaranDatabase AdministratorCommented:
for single quotes within the text, replace each of them with 2 single quotes when you are inserting data from within sql server management studio. from application you don't have to worry about this.
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Aneesh RetnakaranDatabase AdministratorCommented:
I don't think you need to worry about the double quotes
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mounty95Author Commented:
My question is though, how do I replace the single quotes with a variable in an insert statement like the one in my example, but where instead of hard coded values, I have variable A, variable B, variable C, variable D, variable E, and variable F.
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Jim HornMicrosoft SQL Server Developer, Architect, and AuthorCommented:
>My question is though, how do I replace the single quotes with a variable in an insert statement like the one in my example,
If the source is a SQL table, then as Aneesh said replace single quotes with two single quotes.

Copy-paste this into your SSMS and execute to verify it works
-- Store a value with a single quote mark in a variable
Declare @str varchar(50) = 'O''Malley'

-- Stores in the variable as a single string
SELECT @str

-- Convert single quote marks to double quote marks
SELECT REPLACE(@str, char(39), char(39) + char(39)) 

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Then wherever there's a sting, pass it using the above REPLACE function.

If your source is something other than SQL, that in itself won't work, as T-SQL won't know the difference between the single quotes surrounding a char value, and a single quote in a value like O'Malley in a variable.   So, that application will have to pass either two single-quote marks (per above code), or a 'dummy' value like pipe ( | ) which SQL will accept, then change to single quote marks again using REPLACE.
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Richard ObenchainCommented:
A better option would be to create a stored procedure to update these fields and use parameters passed from the code rather than executing a SQL statement directly.  That will also eliminate SQL injection problems down the line.
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Jim HornMicrosoft SQL Server Developer, Architect, and AuthorCommented:
Thanks for the grade.  Good luck with your project.  -Jim
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Microsoft SQL Server

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