在单个.sql文件中开始/结束和创建表 [英] BEGIN/END and CREATE Table in single .sql file

问题描述

我有一个小型SQL脚本，正在使用Oracle的SQL * Plus执行，以模拟在表上的创建或替换:

I have a small SQL script that I'm executing with Oracle's SQL*Plus to emulate create or replace on tables:

BEGIN
    EXECUTE IMMEDIATE 'DROP TABLE symbols';
EXCEPTION
    WHEN OTHERS THEN
        IF SQLCODE != -942 THEN
    END IF;
END;
/
CREATE TABLE symbols ( 
            blah blah,
            blah blah,
        );
EXIT;

SQL * Plus命令行为:

SQL*Plus commandline is:

sqlplus aegsys15_owner/pass#234@MARVINUAT03 @createSymbolsTable.sql << EOF
> EOF

如果我在END之后省略正斜杠(/)，似乎只处理第一个BEGIN/END块，而忽略下面的CREATE TABLE部分.而且，它根本不会打印出任何帮助-只是连接/断开连接:

If I omit the forward slash (/) after END, it seems to only process the first BEGIN/END block, and ignores the CREATE TABLE section underneath. Also, it doesn't print anything help out at all - just connecting/disconnecting:

SQL*Plus: Release 11.2.0.1.0 Production on Tue Sep 13 15:49:34 2011

Copyright (c) 1982, 2009, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

 78  Disconnected from Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

但是，如果我有正斜杠，它会给我一个错误:

However, if I do have the forward slash it gives me an error:

    END IF;
    *
ERROR at line 6:
ORA-06550: line 6, column 5:
PLS-00103: Encountered the symbol "END" when expecting one of the following:
( begin case declare exit for goto if loop mod null pragma
raise return select update while with <an identifier>
<a double-quoted delimited-identifier> <a bind variable> <<
continue close current delete fetch lock insert open rollback
savepoint set sql execute commit forall merge pipe purge

CREATE TABLE symbols (
             *
ERROR at line 1:
ORA-00955: name is already used by an existing object

首先，将BEGIN/END异常块放在顶部，并将CREATE TABLE块放在同一个.sql文件中的最佳方法是什么?

Firstly, what's the best way of having both the BEGIN/END exception block at the top, and the CREATE TABLE block in the same .sql file?

其次，从SQL * Plus中获得一些有用输出的方法是什么?我们运行的每个.sql文件可能都有多个CREATE语句(表，索引，同义词等).我们理想的输出应该是这样的:

And secondly, what's some way of getting some helpful output out of SQL*Plus? Each .sql file we run may have multiple CREATE statements (tables, indexes, synonyms etc.). Our ideal output would be something like:

TABLE foo: Pass
SYNONYM bar: Fail
INDEX foo_1: Pass

不确定是否可以通过SQL或PL/SQL达到这样的效果-如果您认为这是更好的解决方案，那么很乐意为此编写Bash或Python包装器脚本.

Not sure if something like that is achievable with SQL or PL/SQL though - happy to write a Bash or Python wrapper script around this, if you guys think that's a better solution.

干杯， 维克多

推荐答案

您忘记输入if语句.

BEGIN     
     EXECUTE IMMEDIATE 'DROP TABLE symbols'; 
EXCEPTION     
  WHEN OTHERS THEN         
   IF SQLCODE != -942 THEN     
 --here you have to write something for this exception
 -- if you don't have any activity to do then you can use NULL (atleast)
 -- you can't put this if statement body empty in oracle
 NULL;
END IF; 
END; 
/ 

，如果在开始开始之前也在第一行中也使用declare，则更好.

and better if you use declare also at the first line, before begin starts

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