75 lines
2.1 KiB
MySQL
75 lines
2.1 KiB
MySQL
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-- +----------------------------------------------------------------------------+
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-- | Jeffrey M. Hunter |
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-- | jhunter@idevelopment.info |
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-- | www.idevelopment.info |
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-- |----------------------------------------------------------------------------|
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-- | Copyright (c) 1998-2012 Jeffrey M. Hunter. All rights reserved. |
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-- |----------------------------------------------------------------------------|
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-- | DATABASE : Oracle |
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-- | FILE : example_create_index.sql |
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-- | CLASS : Examples |
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-- | PURPOSE : Example SQL script to demonstrate how to create indexes with |
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-- | proper naming conventions. |
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-- | NOTE : As with any code, ensure to test this script in a development |
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-- | environment before attempting to run it in production. |
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-- +----------------------------------------------------------------------------+
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/*
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* -------------------------------
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* UNIQUE INDEX
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* -------------------------------
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*/
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CREATE UNIQUE INDEX emp_u1
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ON emp(emp_id)
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TABLESPACE indexes
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STORAGE (
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INITIAL 256K
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NEXT 256K
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MINEXTENTS 1
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MAXEXTENTS 121
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PCTINCREASE 0
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FREELISTS 3
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)
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/
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/*
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* -------------------------------
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* NON-UNIQUE (default) INDEX
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* -------------------------------
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*/
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CREATE INDEX emp_n1
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ON emp(name)
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TABLESPACE indexes
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STORAGE (
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INITIAL 64K
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NEXT 64K
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MINEXTENTS 1
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MAXEXTENTS 121
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PCTINCREASE 0
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FREELISTS 3
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)
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/
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/*
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* -------------------------------
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* PRIMARY KEY INDEX
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* -------------------------------
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*/
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ALTER TABLE emp
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ADD CONSTRAINT emp_pk PRIMARY KEY(emp_id)
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USING INDEX
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TABLESPACE indexes
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STORAGE (
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INITIAL 64K
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NEXT 64K
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MINEXTENTS 1
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MAXEXTENTS 121
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PCTINCREASE 0
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)
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/
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