From 63f2a8a8301231860b3074722a1c52c0575fa6fc Mon Sep 17 00:00:00 2001 From: Austin Hilberg <40366950+austin-hilberg@users.noreply.github.com> Date: Wed, 19 Dec 2018 15:38:44 -0600 Subject: [PATCH] Fix indentation. --- contents/definition/04-Definition-Syntax.rst | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/contents/definition/04-Definition-Syntax.rst b/contents/definition/04-Definition-Syntax.rst index 1dfdb931..c6f9364e 100644 --- a/contents/definition/04-Definition-Syntax.rst +++ b/contents/definition/04-Definition-Syntax.rst @@ -60,8 +60,8 @@ Note that default values can only be used when inserting as a mapping. Primary key attributes cannot have default values (with the exceptions of ``auto_increment`` and ``CURRENT_TIMESTAMP`` attributes; see :ref:`primary-key`). An attribute with a default value of ``NULL`` is called a **nullable attribute**. - A nullable attribute can be thought of as applying to all entities in a table but having an optional *value* that may be absent in some entities. - Nullable attributes should *not* be used to indicate that an attribute is inapplicable to some entities in a table (see :ref:`normalization`). +A nullable attribute can be thought of as applying to all entities in a table but having an optional *value* that may be absent in some entities. +Nullable attributes should *not* be used to indicate that an attribute is inapplicable to some entities in a table (see :ref:`normalization`). Nullable attributes should be used sparingly to indicate optional rather than inapplicable attributes that still apply to all entities in the table. ``NULL`` is a special literal value and does not need to be enclosed in quotes.