| author | Oleksandr Gavenko <gavenkoa@gmail.com> |
| Sat, 10 Feb 2018 01:49:07 +0200 | |
| changeset 2230 | 9e6ad6607a9e |
| parent 2228 | 837f1337c59b |
| permissions | -rw-r--r-- |
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A Visual Explanation of SQL Joins.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
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.. -*- coding: utf-8; -*- |
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a35c9605ee53
A Visual Explanation of SQL Joins.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
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changeset
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a35c9605ee53
A Visual Explanation of SQL Joins.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
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====== |
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a35c9605ee53
A Visual Explanation of SQL Joins.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
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SQL. |
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a35c9605ee53
A Visual Explanation of SQL Joins.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
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====== |
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a35c9605ee53
A Visual Explanation of SQL Joins.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
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.. contents:: |
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Include only local subsections into TOC. This prevent duplication of
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
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:local: |
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1470
a35c9605ee53
A Visual Explanation of SQL Joins.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
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a35c9605ee53
A Visual Explanation of SQL Joins.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
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Joins. |
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a35c9605ee53
A Visual Explanation of SQL Joins.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
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====== |
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a35c9605ee53
A Visual Explanation of SQL Joins.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
|
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837f1337c59b
Removed indentation that compiled into <blockquote>.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
1912
diff
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http://www.codinghorror.com/blog/2007/10/a-visual-explanation-of-sql-joins.html |
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837f1337c59b
Removed indentation that compiled into <blockquote>.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
1912
diff
changeset
|
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A Visual Explanation of SQL Joins. |
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1470
a35c9605ee53
A Visual Explanation of SQL Joins.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
diff
changeset
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Primary key length.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
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Primary key length. |
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e7c7eb189a84
Primary key length.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
1470
diff
changeset
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=================== |
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e7c7eb189a84
Primary key length.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
1470
diff
changeset
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Primary key length.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
1471
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For ``int`` type (32-bit): ``NUMBER(9)``. For ``long`` type (64-bit): |
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ca9a131b464c
Primary key length.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
1471
diff
changeset
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``NUMBER(18)``. |
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1471
e7c7eb189a84
Primary key length.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
1470
diff
changeset
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e7c7eb189a84
Primary key length.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
1470
diff
changeset
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Oracle allow up to 38 significant digits in ``NUMBER`` and up to 28 digits in |
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e7c7eb189a84
Primary key length.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
1470
diff
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``SEQUENCE``. |
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e7c7eb189a84
Primary key length.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
1470
diff
changeset
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2228
837f1337c59b
Removed indentation that compiled into <blockquote>.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
1912
diff
changeset
|
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http://docs.oracle.com/cd/B28359_01/server.111/b28318/datatype.htm |
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837f1337c59b
Removed indentation that compiled into <blockquote>.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
1912
diff
changeset
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Oracle Data Types |
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837f1337c59b
Removed indentation that compiled into <blockquote>.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
1912
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http://docs.oracle.com/cd/B28359_01/server.111/b28286/statements_6015.htm |
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837f1337c59b
Removed indentation that compiled into <blockquote>.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
1912
diff
changeset
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CREATE SEQUENCE. |
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837f1337c59b
Removed indentation that compiled into <blockquote>.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
1912
diff
changeset
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http://docs.oracle.com/cd/E19501-01/819-3659/gcmaz/index.html |
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837f1337c59b
Removed indentation that compiled into <blockquote>.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
1912
diff
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Java Type to SQL Type Mappings. |