How to Use Full Text Search in SQL Server

Introduction

This article demonstrates how to use a full-text catalog and full-text search in SQL Server. Full-Text Search in SQL Server lets users and applications run full-text queries against character-based data in SQL Server tables.

Definition From MSDN

Before you can run full-text queries on a table, the database administrator must create a Full-Text Index on the table. The Full-Text Index includes one or more character-based columns in the table.

These columns can have any data types: char, varchar, nchar, nvarchar, text, ntext, image, XML, or varbinary(max) and FILESTREAM. Each Full-Text Index indexes one or more columns from the table, and each column can use a specific language.

Full-text queries perform linguistic searches against text data in Full-Text Indexes by operating on words and phrases based on rules of a particular language such as English or Japanese. Full-text queries can include simple words and phrases or multiple forms of a word or phrase. A full-text query returns documents containing at least one match (also known as a hit). A match occurs when a target document contains all the terms specified in the full-text query and meets other search conditions, such as the distance between the matching terms.

Getting Started

First, start SQL Server, select database, expand storage, right-click on Full Text Catelog, and select New Full Text Catelog.

Image 1.

Enter the catalog name and click OK.

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You will see the catalog created after expanding full-text catalogs.

Image 3.

After creating the full-text catalog, it is time to create a Full-Text Index.

Note - If the Full-Text Index feature is disabled, you must execute this query.

use NORTHWND
CREATE FULLTEXT CATALOG ftCatalog AS DEFAULT;
GO
EXEC NORTHWND

Now right-click on the table, select Full-Text Index, and click Define Full-Text Index.