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SQL*PLus 帮助手册(SP2-0171)

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Release: 2016-06-07 17:28:37
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对于经常在SQL*Plus 下工作的大师们而言,总是时不时查询SQL*Plus的帮助命令。着实太多了,记不

对于经常在SQL*Plus 下工作的大师们而言,总是时不时查询SQL*Plus的帮助命令。着实太多了,记不住。SQL*Plus下直接提供了help命令来帮助描述所有命令的用法。嘎嘎,再也不用查SQL*Plus reference了。对于Oracle 10g缺省情况下,SQL*Plus的help手册并没有被安装,,需要手动安装。Oracle 10/11g下采用相同的安装方式,下面来描述一下help的安装与使用。

1、安装sqlplus help

system@CNMMBO> help
SP2-0171: HELP system not available.

robin@SZDB:~> cd $ORACLE_HOME/sqlplus/admin/help    --脚本路径位于ORACLE_HOME,sqlplus/admin/hlep目录下
robin@SZDB:/users/oracle/OraHome10g/sqlplus/admin/help> ls
helpbld.sql  helpdrop.sql  helpus.sql  hlpbld.sql

robin@SZDB:/users/oracle/OraHome10g/sqlplus/admin/help> head -40 hlpbld.sql
--
-- Copyright (c) Oracle Corporation 1983, 2003.  All Rights Reserved.
--
-- NAME
--  hlpbld.sql
--
-- DESCRIPTION
--  Builds the SQL*Plus HELP table and loads the HELP data from a
--  data file.  The data file must exist before this script is run.
--
-- USAGE
--  To run this script, connect as SYSTEM and pass the datafile to be
--  loaded as a parameter e.g.
--
--      sqlplus system/ @hlpbld.sql helpus.sql
--
--

DEFINE DATAFILE = &1

--
-- Create the HELP table
--

DROP TABLE HELP;
CREATE TABLE HELP
(
  TOPIC VARCHAR2 (50) NOT NULL,
  SEQ  NUMBER        NOT NULL,
  INFO  VARCHAR2 (80)
) PCTFREE 0 STORAGE (INITIAL 48K PCTINCREASE 0);

GRANT SELECT ON HELP TO PUBLIC;

--
-- Insert the data into HELP.
--

@@&DATAFILE

system@CNMMBO> @$ORACLE_HOME/sqlplus/admin/help/hlpbld.sql helpus.sql
DROP TABLE HELP
          *
ERROR at line 1:
ORA-00942: table or view does not exist

Table created.

Grant succeeded.
...

Commit complete.

View dropped.

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