Solved

TSQL Delphi query get parameter error when where containing " and % BOTH characters

Posted on 2014-04-14
6
515 Views
Last Modified: 2014-04-14
select * from table_name where colname like ('%" :%')

getting error : no value for parameter '%')

paramcheck is disabled, but not helps
0
Comment
Question by:RT_
  • 3
  • 3
6 Comments
 
LVL 33

Expert Comment

by:ste5an
ID: 39998806
What chars are you looking for? How does the condition looks like in SSMS?

Keep in mind that ' and " need to be escaped. E.g.

Condition := 'WHERE colname LIKE ''%:%''';

Open in new window

0
 

Author Comment

by:RT_
ID: 39999139
here are the string, that i am searcing for :

ACER monitor AL1512 15" 1024*768, 400:1 kontrasztarány, 350cd/m2 - használt

but on insert statement, the problem is the same.

When i'll cut the " or the :  chars, the query is working.

The database is on Mysql.
0
 
LVL 33

Accepted Solution

by:
ste5an earned 500 total points
ID: 39999278
Yup, the single quotation mark is the Pascal string delimiter and the colon is the indicator for a parameter (haven't seen this either in your first post).

The single quotation mark must be doubled to be escaped. The colon needs that you set it by a string variable:

SqlStatement := 'SELECT * FROM table_name WHERE colname LIKE ( ''%":%'');';
AdoDataSet.ParamCheck := False;
AdoDataSet.CommandText := SqlStatement;
AdoDataSet..Open;

Open in new window


The order of ParamChek and the CommandText assignement is necessary to make it work.
0
Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

 

Author Comment

by:RT_
ID: 39999307
here is the exact code, the double quotation is there but, still the no value for parameter 1


f_DataModule.MSHQms_fotabla_v.SQL.Text := 'select * from ms_raktar where megjegyzes like (''%ACER monitor AL1512 15" 1024*768, 400:1 kontrasztarány, 350cd/m2 - használt%'');';

f_DataModule.MSHQms_fotabla_v.ParamCheck := False;
f_DataModule.MSHQms_fotabla_v.Open;
0
 
LVL 33

Expert Comment

by:ste5an
ID: 39999597
No, take a look at my sample again.

f_DataModule.MSHQms_fotabla_v.Close; // Just in case that not.
f_DataModule.MSHQms_fotabla_v.SQL.Clear;
f_DataModule.MSHQms_fotabla_v.ParamCheck := False;
f_DataModule.MSHQms_fotabla_v.SQL.Text := 'select * from ms_raktar where megjegyzes like (''%ACER monitor AL1512 15" 1024*768, 400:1 kontrasztarány, 350cd/m2 - használt%'');';
f_DataModule.MSHQms_fotabla_v.Open;

Open in new window

0
 

Author Closing Comment

by:RT_
ID: 39999845
Thanks a lot, i have found the difference and now it works!
0

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

In this post we will learn how to connect and configure Android Device (Smartphone etc.) with Android Studio. After that we will run a simple Hello World Program.
This article will inform Clients about common and important expectations from the freelancers (Experts) who are looking at your Gig.
The viewer will be introduced to the member functions push_back and pop_back of the vector class. The video will teach the difference between the two as well as how to use each one along with its functionality.

808 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question