How do I search in multiple columns

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1.00/5 (1 vote)

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I want to search some content in multiple rows, like :-

i used this code for searching text similar to the ENTERED text in textbox3 in column 1, but i want that it should also display the record with 2nd column having similar data.

DA.SelectCommand = new SqlCommand("select * from SEATING where STATUS1 like '" + textBox3.Text + "%' ", CS);

All i want is the above code should also display records in datagridview with text appearing similar in STATUS2 , STATUS3 , STATUS4 columns.....

What I have tried:

i have tried using 'and' or 'or' or placing ',' between 2 columns but it dint work

Posted 24-Jun-17 0:55am

chinu1d

Updated 24-Jun-17 7:03am

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2 solutions

Solution 1

If you use SQL Server, you can use Freetext, see: Expand search capabilities with the SQL Server FREETEXT command[^]
Also see: Get Started with Full-Text Search | Microsoft Docs[^]

Posted 24-Jun-17 1:05am

RickZeeland

Updated 24-Jun-17 1:22am

v2

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chinu1d 24-Jun-17 9:54am

can you give an example??

chinu1d 24-Jun-17 9:58am

it gives this error

An unhandled exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll

Additional information: Cannot use a CONTAINS or FREETEXT predicate on table or indexed view 'SEATING' because it is not full-text indexed.

RickZeeland 24-Jun-17 10:07am

You will first have to prepare your database, see: https://docs.microsoft.com/en-us/sql/relational-databases/search/get-started-with-full-text-search

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Patrice T · Accepted Answer · 2017-06-24T07:03:00

Not a solution to your question, but another problem you have.
Never build an SQL query by concatenating strings. Sooner or later, you will do it with user inputs, and this opens door to a vulnerability named "SQL injection", it is dangerous for your database and error prone.
A single quote in a name and your program crash. If a user input a name like "Brian O'Conner" can crash your app, it is an SQL injection vulnerability, and the crash is the least of the problems, a malicious user input and it is promoted to SQL commands with all credentials.
SQL injection - Wikipedia[^]
SQL Injection[^]