Visiting The Catalog - PostgreSQL

Introduction

Exploring The Catalog

The Information Schema

Some usages

Wrap Up

Visiting The Catalog

A Stroll Through The PostgreSQL Catalog

Charles Clavadetscher

Swiss PostgreSQL Users Group

Nordic PGDay 2019, 19.03.2019, Copenhagen, Denmark

Charles Clavadetscher Visiting The Catalog

Swiss PostgreSQL Users Group 1/51

Introduction

Outline

Exploring The Catalog

The Information Schema

Some usages

Wrap Up

1 Introduction 2 Exploring The Catalog 3 The Information Schema 4 Some usages 5 Wrap Up

Charles Clavadetscher Visiting The Catalog

Swiss PostgreSQL Users Group 2/51

Introduction

Exploring The Catalog

In Short About Me

The Information Schema

Some usages

Wrap Up

Senior DB Engineer at KOF ETH Zurich

KOF is the Center of Economic Research of the ETHZ the Swiss Institute of Technology in Zurich, Switzerland Independent economic research on business cycle tendencies for almost all sectors Maintenance of all databases at KOF: PostgreSQL, Oracle, MySQL and MSSQL Server. Focus on migrating to PostgreSQL Support in business process re-engineering

Co-founder and treasurer of the SwissPUG, the Swiss PostgreSQL Users Group

Member of the board of the Swiss PGDay

Charles Clavadetscher Visiting The Catalog

Swiss PostgreSQL Users Group 3/51

Introduction

Outline

Exploring The Catalog

The Information Schema

Some usages

Wrap Up

1 Introduction 2 Exploring The Catalog 3 The Information Schema 4 Some usages 5 Wrap Up

Charles Clavadetscher Visiting The Catalog

Swiss PostgreSQL Users Group 4/51

Introduction

Exploring The Catalog

Introduction

PostgreSQL: The Catalog

The Information Schema

Some usages

Wrap Up

What Are The Catalog And The Information Schema ?

Source: Wikipedia -

The database catalog of a database instance consists of metadata in which definitions of database objects such as base tables, views (virtual tables), synonyms, value ranges, indexes, users, and user groups are stored.

The SQL standard specifies a uniform means to access the catalog, called the INFORMATION_SCHEMA, but not all databases follow this, even if they implement other aspects of the SQL standard. For an example of database-specific metadata access methods, see Oracle metadata.

Charles Clavadetscher Visiting The Catalog

Swiss PostgreSQL Users Group 5/51

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