What is the use of sp executesql

Does not have strongly typed parameters in the adhoc statement and therefore can cause problems when the statements are executed I have ways around this. Does not force a plan to be cached.

This can be a pro in that SQL Server can create a plan for each execution. BTW, why are the images so large wide? Again, sorry for my delay. I do hope to get another post on this soon. You are correct,I was referring to Variables not available. Leave a Reply Cancel reply Your email address will not be published.

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Advertiser Disclosure. August 17th, AM. Need help changing table contents. I agree I could further elaborate on some of this as well as provide pros and cons. I will try to update this in the near future. Also, I agree the first example isn't truly dynamic SQL, but it shows how to create a query that can be changed using parameters versus hardcoding items.

I think this is helpful to new people to show there is an easy way to do this without having to build a long query string and then executing the assembled string.

Thanks for the tip. However, I think you've done a bit of disservice to the community for not going into the pros and cons of each.

Parameterized queries especially if they've been made into stored procedures are the safest and best way to go. As a stored procedure, they can take advantage of plan caching, which can result in faster execution times.

Furthermore, they are not inherently subjected to SQL injection, which can reek havoc on a database. I tend to shy away from EXEC like the plague, unless I am using it within the body of a stored procedure, using either no parameters, or parameters that I've derived from data generated within the procedure, but NEVER with passed parameters.

If your code does need to be dynamic i. I have looked at kinds of examples on the internet.. I needed to modify some contents of the temporary table and limit the content at some point. This works perfectly fine on the management studio.

The problem is, the same procedure is returning no data when it's called from a Java application. I'd appreciate any assistance from you. Thank you. IF changeType not in 'edmms', 'change of name', 'change of address', 'correction of name', 'correction of CHN'. I like ir so much. I agree this is not the best method for writing code and should only be used as a last resort and SQL injection should always be a concern regardless of what methods are used.

I know it wasnt the purpose of this article, but ways 2 and 3 are open to sql injection if any of those variables are user supplied. You really should mention that in more significant detail than just the next steps. That could easily be missed. I actually wrote a function to go through a string column list like your example, and apply quotes [] to the names to block sql injection.

Just different ways of executing a dynamic statement. I must develop a stored procedure in a dynamic way. But the operand of the "where" clause must be a parameter. I think that Dynamic SQL is the solution, but we consider this one not enough "elegant" and the Sql injection issue too These variables can be used anywhere, in strings, as server, table, or database name, or even parts of names.

The variable definition is active for the entire script, even across GO. You can write multi-server scripts, like a database copy.

I want to store the result of a dynamic query into a variable, assuming the query returns only 1 value. Is there anyway to see the actual SQL state being created with the parameters actually substituted.

It is a little confusing that I used the same name twice. Hopefully that helps answer your question. Francisco - try something like this. Not sure if this is exactly what you need to do or not. I have a Dynamic select, I want to choose dynamically the columns of table 2 who have names as a month but I dont want to use the complete name when I call them with SSRS, my question is how to save the results of this Dynamic Select in Table 2?

I can not do it can someone help me. Everywhere it tell me to store the result into a temp table and then query the temp table to store the value into a variable. Can anybody please help me if there is any easier way to directly put the result into a variable, just like how mysql lets you with keyword into variable in its dynamic query. I can execute my dynamic SQL statement, but when I use it in a stored procedure, I can't get at the data.

As a simple example, when I run the following in a query window, it returns a set of data:.