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In a SQL Server 2005 database I'm working on this query:
select *
from foo
join bar on bar.x = foo.x
join baz on baz.y = foo.y
where foo.x = 1000
has a vastly different and faster query plan than the following parameterized version.
declare @p0 int
set...
Started by Craig Quillen on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
The parameterized query has chosen the query that it believes that takes the parameter directly and then applies it to the query -- something like this:
CREATE PROCEDURE the query....
Of data given in your specific literal.
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I'm trying to configure a parameterized query to the effect of:
SELECT field1 FROM myTable WHERE field2 IN (1,2,3,4)
The database I'm using is Postgres.
This query run successfully unparameterized, but I'd like to use a parameterized query with a JdbcTemplate...
Started by Mark on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
query = "SELECT field1 FROM field2 IN ("+paramStr+")"
or, if you has a perfomance or a query len issues, you can fill temporary into tempTable values (2) insert into....
I'm think you can't use parameters in this way, only dynamic query.
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[ Status: Learner ]
I am attempting to implement a parameterized query but I am having problems. Jonathan Sampson recently hinted at how this could be done (#2286115), but I'm not following his suggestion correctly. Here is my script
$cGrade = "grade"...
Started by dave on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Your last line is almost correct:
$qResult = mysql_query(sprintf($sql, $cGrade)) or die('Error it into your queries!
Check out the MySQLi prepared statements class:
$query = "INSERT INTO myCity (Name, CountryCode, District) VALUES....
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Ok. I want to use parameterized queries to avoid dealing with embedded double or single quotes (" or ') in my data.
As a simple example, what would the VBA code look like for the parameterized verion of this?
Dim qstr as String
Dim possiblyDangerousString...
Started by Cesar on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Note also....
What are you going to do with the query now? Note that you can store parameter queries and assign " _ & "WHERE LastName=txtLastName" ''Create a temporary query Set qdf = db.CreateQueryDef("", strSQL the parameters in VBA.
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Why is using a parameterized query to insert data into a table:
string queryString = "insert into product(id, name) values (@id, @name)";
faster than appending the values to the query string:
string queryString = "insert into product(id, name) values ...
Started by luvieere on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Simple....
For Sql server see is recompiled on each use.
Is because the parameterized query only has to be compiled once, and the dynamic query versionThis is due to the database caching the query plans, which makes it faster.
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I have an application that builds dynamic parameterized SQL queries. The following query returns an inner exception of "syntax error at or near "="...
I am thinking it is in the way that I am assigning the parameter to the column name but, I'm not sure...
Started by Jon Ownbey on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Adding it as a parameter to the query:
SqlParameter p = new SqlParameter("@sp1"); p.value = C.
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Suppose I have a search screen that is intended for looking up items. There are various optional search options on the screen that will cause the SQL query statement to vary.
Here are some example searches:
Description search Description search + item...
Started by Jason Down on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
You can....
If you have inline SQL code in your c# built with a StringBuilder then the execution plans will never be cached and it will not perform as well as it would with stored procedures .
Your probably best off creating stored procedures for each case .
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Here is my SQLCommand object:
oCommand.CommandText = "INSERT INTO hits (id,client_id,client_ip,page,vars) VALUES _ (@@IDENTITY,@client_id,@ip,@page,@vars)" oCommand.Parameters.Count = 4 >> oCommand.Parameters.Item(0).ParameterName = "@client_id"...
Started by Anders on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
I believe the parameter count.
Follow the following syntax when doing a parameterized query:
oCommand = New SqlCommand("INSERT that you need to pass a value of DBNull.value instead of null.
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I use C# to make connection to a db and then a Ad hoc SQL to get data. This simple SQL query is very convenient to debug since I can log the SQL query string. If I use parametrized SQL query command, is there any way to log sql query string for debug ...
Started by David.Chu.ca on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
You can log it with the parameters on the application side or turn on query logging on your.
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I'd like to be able to create a parameterized query in MS Access 2003 and feed the values of certain form elements to that query and then get the corresponding resultset back and do some basic calculations with them. I'm coming up short in figuring out...
Started by Tim Visher on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Your can then have....
It updates a table using the parameter txtHospital:
Set db = CurrentDb_Country value .
The parameterized query looks like that:
Select Tbl_Country.* From Tbl_CountryHere is a snippet of code.
] )
Let's take an example.
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