---
title: "Data Catalog glossary"
slug: "datacatalog-glossary"
tags: ["Data Catalog", "VPC"]
updated: 2026-09-17T09:17:55Z
published: 2026-09-17T09:17:55Z
canonical: "guide.ncloud-docs.com/datacatalog-glossary"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://guide.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Data Catalog glossary

Available in VPC

There are a few key terms you must know to use Data Catalog. The terms and their descriptions are as follows.

### Glob Pattern

A method of specifying a set of multiple file names using wildcards.

### Reload

A function to restart catalog creation when the connection to the catalog is unstable, or when the catalog is in a normal state but the scanner is not working properly or the database is not being created.

### Metadata

[See NAVER Cloud Platform glossary](https://www.ncloud.com/guideCenter/glossary/580?q=Metadata&t=&space=true&word=true&abbreviation=true&description=true)

### Classifier

A classification function to determine the schema of data when metadata is collected through a classifier scanner.

### Scanner

A function that automatically infers the schema of the data according to the scanner operating option and creates a table suitable for the data

### Schema

[See NAVER Cloud Platform glossary](https://www.ncloud.com/guideCenter/glossary/580?q=Schema&t=)

### Connection

A function to set access information to connect to a data source when metadata is collected through a connection scanner

### Tag Template

A function to provide templates for easy setup without having to regenerate the same list of tags each time

### Tag

A function to set keys and values for each data type in a database or table in the catalog for easy contextualization and retrieval of tag data

          Note

          

To see a full list of terms and definitions, go to [Glossary](https://www.ncloud.com/guideCenter/glossary) from the NAVER Cloud Platform portal.