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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 12:15:05 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 12:15:05 +0000
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downloadpostgresql-14-46651ce6fe013220ed397add242004d764fc0153.tar.xz
postgresql-14-46651ce6fe013220ed397add242004d764fc0153.zip
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Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 5. Data Definition</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="sql-syntax-calling-funcs.html" title="4.3. Calling Functions" /><link rel="next" href="ddl-basics.html" title="5.1. Table Basics" /></head><body id="docContent" class="container-fluid col-10"><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">Chapter 5. Data Definition</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="sql-syntax-calling-funcs.html" title="4.3. Calling Functions">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="sql.html" title="Part II. The SQL Language">Up</a></td><th width="60%" align="center">Part II. The SQL Language</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 14.5 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="ddl-basics.html" title="5.1. Table Basics">Next</a></td></tr></table><hr></hr></div><div class="chapter" id="DDL"><div class="titlepage"><div><div><h2 class="title">Chapter 5. Data Definition</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="sect1"><a href="ddl-basics.html">5.1. Table Basics</a></span></dt><dt><span class="sect1"><a href="ddl-default.html">5.2. Default Values</a></span></dt><dt><span class="sect1"><a href="ddl-generated-columns.html">5.3. Generated Columns</a></span></dt><dt><span class="sect1"><a href="ddl-constraints.html">5.4. Constraints</a></span></dt><dd><dl><dt><span class="sect2"><a href="ddl-constraints.html#DDL-CONSTRAINTS-CHECK-CONSTRAINTS">5.4.1. Check Constraints</a></span></dt><dt><span class="sect2"><a href="ddl-constraints.html#id-1.5.4.6.6">5.4.2. Not-Null Constraints</a></span></dt><dt><span class="sect2"><a href="ddl-constraints.html#DDL-CONSTRAINTS-UNIQUE-CONSTRAINTS">5.4.3. Unique Constraints</a></span></dt><dt><span class="sect2"><a href="ddl-constraints.html#DDL-CONSTRAINTS-PRIMARY-KEYS">5.4.4. Primary Keys</a></span></dt><dt><span class="sect2"><a href="ddl-constraints.html#DDL-CONSTRAINTS-FK">5.4.5. Foreign Keys</a></span></dt><dt><span class="sect2"><a href="ddl-constraints.html#DDL-CONSTRAINTS-EXCLUSION">5.4.6. Exclusion Constraints</a></span></dt></dl></dd><dt><span class="sect1"><a href="ddl-system-columns.html">5.5. System Columns</a></span></dt><dt><span class="sect1"><a href="ddl-alter.html">5.6. Modifying Tables</a></span></dt><dd><dl><dt><span class="sect2"><a href="ddl-alter.html#DDL-ALTER-ADDING-A-COLUMN">5.6.1. Adding a Column</a></span></dt><dt><span class="sect2"><a href="ddl-alter.html#DDL-ALTER-REMOVING-A-COLUMN">5.6.2. Removing a Column</a></span></dt><dt><span class="sect2"><a href="ddl-alter.html#DDL-ALTER-ADDING-A-CONSTRAINT">5.6.3. Adding a Constraint</a></span></dt><dt><span class="sect2"><a href="ddl-alter.html#DDL-ALTER-REMOVING-A-CONSTRAINT">5.6.4. Removing a Constraint</a></span></dt><dt><span class="sect2"><a href="ddl-alter.html#id-1.5.4.8.9">5.6.5. Changing a Column's Default Value</a></span></dt><dt><span class="sect2"><a href="ddl-alter.html#id-1.5.4.8.10">5.6.6. Changing a Column's Data Type</a></span></dt><dt><span class="sect2"><a href="ddl-alter.html#id-1.5.4.8.11">5.6.7. Renaming a Column</a></span></dt><dt><span class="sect2"><a href="ddl-alter.html#id-1.5.4.8.12">5.6.8. Renaming a Table</a></span></dt></dl></dd><dt><span class="sect1"><a href="ddl-priv.html">5.7. Privileges</a></span></dt><dt><span class="sect1"><a href="ddl-rowsecurity.html">5.8. Row Security Policies</a></span></dt><dt><span class="sect1"><a href="ddl-schemas.html">5.9. Schemas</a></span></dt><dd><dl><dt><span class="sect2"><a href="ddl-schemas.html#DDL-SCHEMAS-CREATE">5.9.1. Creating a Schema</a></span></dt><dt><span class="sect2"><a href="ddl-schemas.html#DDL-SCHEMAS-PUBLIC">5.9.2. The Public Schema</a></span></dt><dt><span class="sect2"><a href="ddl-schemas.html#DDL-SCHEMAS-PATH">5.9.3. The Schema Search Path</a></span></dt><dt><span class="sect2"><a href="ddl-schemas.html#DDL-SCHEMAS-PRIV">5.9.4. Schemas and Privileges</a></span></dt><dt><span class="sect2"><a href="ddl-schemas.html#DDL-SCHEMAS-CATALOG">5.9.5. The System Catalog Schema</a></span></dt><dt><span class="sect2"><a href="ddl-schemas.html#DDL-SCHEMAS-PATTERNS">5.9.6. Usage Patterns</a></span></dt><dt><span class="sect2"><a href="ddl-schemas.html#DDL-SCHEMAS-PORTABILITY">5.9.7. Portability</a></span></dt></dl></dd><dt><span class="sect1"><a href="ddl-inherit.html">5.10. Inheritance</a></span></dt><dd><dl><dt><span class="sect2"><a href="ddl-inherit.html#DDL-INHERIT-CAVEATS">5.10.1. Caveats</a></span></dt></dl></dd><dt><span class="sect1"><a href="ddl-partitioning.html">5.11. Table Partitioning</a></span></dt><dd><dl><dt><span class="sect2"><a href="ddl-partitioning.html#DDL-PARTITIONING-OVERVIEW">5.11.1. Overview</a></span></dt><dt><span class="sect2"><a href="ddl-partitioning.html#DDL-PARTITIONING-DECLARATIVE">5.11.2. Declarative Partitioning</a></span></dt><dt><span class="sect2"><a href="ddl-partitioning.html#DDL-PARTITIONING-USING-INHERITANCE">5.11.3. Partitioning Using Inheritance</a></span></dt><dt><span class="sect2"><a href="ddl-partitioning.html#DDL-PARTITION-PRUNING">5.11.4. Partition Pruning</a></span></dt><dt><span class="sect2"><a href="ddl-partitioning.html#DDL-PARTITIONING-CONSTRAINT-EXCLUSION">5.11.5. Partitioning and Constraint Exclusion</a></span></dt><dt><span class="sect2"><a href="ddl-partitioning.html#DDL-PARTITIONING-DECLARATIVE-BEST-PRACTICES">5.11.6. Best Practices for Declarative Partitioning</a></span></dt></dl></dd><dt><span class="sect1"><a href="ddl-foreign-data.html">5.12. Foreign Data</a></span></dt><dt><span class="sect1"><a href="ddl-others.html">5.13. Other Database Objects</a></span></dt><dt><span class="sect1"><a href="ddl-depend.html">5.14. Dependency Tracking</a></span></dt></dl></div><p>
+ This chapter covers how one creates the database structures that
+ will hold one's data. In a relational database, the raw data is
+ stored in tables, so the majority of this chapter is devoted to
+ explaining how tables are created and modified and what features are
+ available to control what data is stored in the tables.
+ Subsequently, we discuss how tables can be organized into
+ schemas, and how privileges can be assigned to tables. Finally,
+ we will briefly look at other features that affect the data storage,
+ such as inheritance, table partitioning, views, functions, and
+ triggers.
+ </p></div><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navfooter"><hr></hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="sql-syntax-calling-funcs.html" title="4.3. Calling Functions">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="sql.html" title="Part II. The SQL Language">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ddl-basics.html" title="5.1. Table Basics">Next</a></td></tr><tr><td width="40%" align="left" valign="top">4.3. Calling Functions </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 14.5 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 5.1. Table Basics</td></tr></table></div></body></html> \ No newline at end of file
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