What is a full-text catalog?

What is a full-text catalog?

What is a full-text catalog?

A full-text catalog is a logical container for a group of full-text indexes. You have to create a full-text catalog before you can create a full-text index. A full-text catalog is a virtual object that does not belong to any filegroup.

How do I do a full-text search?

You can perform a full text query either by using a CONTAINS clause in the FROM clause of a SELECT statement, or by using a CONTAINS search condition (predicate) in a WHERE clause. Both return the same rows; however, use a CONTAINS clause in a FROM clause also returns scores for the matching rows.

What is full-text indexing?

A full-text index is a special type of index that provides index access for full-text queries against character or binary column data. A full-text index breaks the column into tokens and these tokens make up the index data.

What is text in a database?

A text is any sequence of symbols (or characters) drawn from an alphabet. A text database is a system that maintains a (usually large) text collection and provides fast and accurate access to it.

What is the advantage of a full text search?

Users searching full text are more likely to find relevant articles than searching only abstracts. This finding affirms the value of full text collections for text retrieval and provides a starting point for future work in exploring algorithms that take advantage of rapidly-growing digital archives.

How to find the filegroups of a full text index?

To find the filegroup of full-text index on a table or view, use the following query, where object_name is the name of the table or view: After you find the filegroups that contain the indexes of a full-text catalog, you need back up each of the filegroups. During the backup process, full-text catalogs may not be dropped or added.

How to create and manage full text catalogs?

Create and Manage Full-Text Catalogs. A full-text catalog is a logical container for a group of full-text indexes. You have to create a full-text catalog before you can create a full-text index. A full-text catalog is a virtual object that does not belong to any filegroup.

Where does the full text catalog reside in SQL Server?

In SQL Server, the full-text catalog is a logical concept and does not reside in a filegroup. Therefore, to back up a full-text catalog in SQL Server, you must identify every filegroup that contains a full-text index that belongs to the catalog.

How to set up a full text search?

There are two basic steps to set up full-text search: 1 Create a full-text catalog. 2 Create a full-text index on tables or indexed view you want to search. More