Using SSIS and MS-SQL Server 2012
I have a SQL Task executing:
SELECT COUNT(id) as id FROM PORG_Files WHERE filename = ?
It never returns anything except 0 because the SSIS filename looks like:
\\\\erp\\shares\\Save\\item_1168.txt
And the Filename in the Table Looks like:
\\erp\shares\Save\item_1168.txt
I don't think I want to insert the filename into the table like that, so how/where do I format so I can make the matches to get my constraint that depends on this to fire.
Thanks!
Ok, If I run this query in SQL Manager it works.
SELECT COUNT(id) as id FROM PORG_Files WHERE filename = REPLACE('\\\\erp\\shares\\Save\\item_1168.txt','\\','\')
When I put the equivilant into the SQL Task Editor for the SQLStatement, it still returns 0
SELECT COUNT(id) as id FROM PORG_Files WHERE filename = REPLACE(?,'\\','\')
Workaround - Expression
Try using expression instead of passing parameters:
In the Execute SQL Task, Go To Expression Tab, Add an expression for SQLStatementSource property as following:
"SELECT COUNT(id) as id FROM PORG_Files WHERE filename = '" + #[User::CurrentFileName] + "'"
Are you just stored the file name directly in a variable? If you store the file name as the expression of a string variable instead, the output format will what you described. The result of the 4 forward slashes (\) will will be only 2, and the 2 \ will be a single one. This is because the the forward slash must be escaped in an SSIS expression. In the Expression field of the variable, click the ellipsis and enter the text inside double quotes to make this an expression such as in the example below.
“\\\\erp\\shares\\Save\\item_1168.txt”
Related
I want to use LIKE operator in access 10 sql query with variable.
Example:
temporary variable var contains value bs
var = "bs"
I want to match every String that starts with value of temporary variable followed by zero or more numbers.
I am trying to fire the query:
select * from xyz where variety LIKE "#[tempvars]![var] + [0-9]*"
It is returning 0 records.
Thankz for the help.
You need to refer to your tempvar outside of the quotes, and use & for concatenation:
select * from xyz where variety LIKE "#" & [tempvars]![var] & "[0-9]*"
This will return all records where variety starts with a literal #, then whatever is in [tempvars]![var], then a number, and then any amount of characters.
You can check if that variety is available in your table or not. If that variety is available in your table then don't search with like operator and otherwise use like operator.
In my report query I have a where clause that needs to be replaced dynamically based on the data chosen in the front end.
The query is something like :
where ?=?
I already have a code to replace the value - I created report parameter and linked to the value ? in the query.
Example:
where name=?
Any value of name that comes from front end replaces the ? in the where clause - this works fine.
But now I need to replace the entire clause (where ?=?). Should I create two parameters and link them to both the '?' ?
No, unfortunately most database engines do not allow to use a query parameter for handling a dynamic column name. This is for security considerations.
So you need to keep an arbitrary column name in the query:
where name=?
And then in "beforeOpen" script of the dataset replace 'name' with a report parameter value:
this.queryText=this.queryText.replace("name",params["myparameter"].value);
To prevent SQLIA i recommend to test the value of the parameter in this script. There are many ways to do this but a white list is the strongest test, for example:
var column=params["myparameter"].value;
if (column=="name" || column=="id" || column=="account" || column=="mycolumnname"){
this.queryText=this.queryText.replace("name",column);
}
In addition to Dominique's answer and your comment, then you'll just need a slightly more advanced logic.
For example, you could name your dynamic column-name-value pairs (column1, value1), (column2, value2) and so on. In the static text of the query, make sure to have bind variables for value1, value2 and so on (for example, with Oracle SQL, using the syntax
with params as (
select :value1 as value1,
:value2 as value2 ...
from dual
)
select ...
from params, my_table
where 1=1
and ... static conditions....
Then, in the beforeOpen script, append conditions to the query text in a loop as needed (the loop left as an exercise to the reader, and don't forget checking the column names for security reasons!):
this.queryText += " and " + column_name[i] + "= params.value" + i;
This way you can still use bind variables for the comparison values.
I have a table in SQLite database with data type text, but when I do comparison its not working if I do it this way :
select * from scanned_dbs where db = 'cdd_db';
But if i change the query to:
select * from scanned_dbs where db like 'cdd_db';
It works. But as valex pointed out it will also match cddAdb, cddBdb, ...and so on, so this is not the right way.
One more method I found which is working is this:
select * from scanned_dbs where cast(db as varchar) = 'cdd_db';
So can any one tell me why this is working and not the first one which is direct comparison...
Because an underscore ("_") in the LIKE pattern matches any single character in the string.
So when you use db = 'cdd_db' the only db value that matches is exact 'cdd_db'. But when you use the LIKE operator db like 'cdd_db' then "_" symbol is a pattern so db values that match: cddAdb,cddBdb,cddcdb,cddddb,cdd1db, ....
I am writing a query to filter a table by a certain field. However, the filter I am using is being evaluated as a column for some unknown reason.
i.e.
SELECT prn FROM CompanyPack WHERE prn = "212"
In this query, SSMS 2012 throws an error in which it is telling me that "212" is an invalid column name, but it is not a column at all.
prn is a nvarchar(50).
Any advice?
Use single quotes '' not double quotes ". Like so
SELECT prn FROM CompanyPack WHERE prn = '212'
Here is the scenario:
I have a SQL select statement that returns a binary data object as a string. This cannot be changed it is outside the area of what I can modify.
So for example it would return '1628258DB0DD2F4D9D6BC0BF91D78652'.
If I manually add a 0x in front of this string in a query I will retrieve the results I'm looking for so for example:
SELECT a, b FROM mytable WHERE uuid = 0x1628258DB0DD2F4D9D6BC0BF91D78652
My result set is correct.
However I need to find a Microsoft SQL Server 2008 compatible means to do this programatically. Simply concatenating 0x to the string variable does not work. Obvious, but I did try it.
Help please :)
Thank you
Mark
My understanding of your question is that you have a column uuid, which is binary.
You are trying to select rows with a particular value in uuid, but you are trying to use a string like so:
SELECT a, b FROM mytable WHERE uuid = '0x1628258DB0DD2F4D9D6BC0BF91D78652'
which does not work. If this is correct, you can use the CONVERT function with a style of 2 to have SQL Server treat the string as hex and not require a '0x' as the first characters:
SELECT a, b
FROM mytable
WHERE uuid = CONVERT(binary(16), '1628258DB0DD2F4D9D6BC0BF91D78652', 2)