删除 SQL *Plus SPOOL 中的初始和尾随空白行（SET MARKUP CSV）

Question

我正在尝试使用 SQL *Plus 将简单的 SELECT 导出到 .csv 文件。如果有更好的方法来做到这一点，我愿意，但我需要使用 SQL 并以 .csv 结尾，并且能够单击某些内容来运行整个过程，而无需手动步骤。

此脚本的输出以空行开始和结束（x'0D' 和 x'0A'）。

有什么方法可以删除它们，尤其是第一个空行？我可以在流程的下一步中执行此操作，但它有可能引入错误，并且似乎应该有一种简单的方法可以从 SQL *Plus 执行此操作。

这是我的尝试：

SET MARKUP CSV ON DELIMITER "," QUOTE OFF
SET HEADING ON
SET SHOWMODE OFF
SET FEEDBACK OFF
SET VERIFY OFF
SET TERMOUT OFF
SET NEWPAGE NONE
SET PAGESIZE 0
TTITLE OFF
set echo off
set trimspool on
set trimout on
SPOOL "C:\Users\me\Downloads\sql-export2.csv" REPLACE
SELECT * 
FROM my_table;
SPOOL OFF;
EXIT;

我认为不需要这些行（有些行不应该与

SET MARKUP CSV

一起使用），但试图展示我尝试过的所有行不通的内容。

SET NEWPAGE NONE
SET PAGESIZE 0
TTITLE OFF
set echo off
set trimspool on
set trimout on

我已将其保存到 .sql 文件中，我使用

sqlplus

命令从命令提示符运行该文件。 SQL *Plus 版本是 12.2.0.1.0，因为我的驱动程序很旧。如果版本 19 可能有帮助，我可以尝试解决我的安装程序问题。

我是 SQL *Plus 新手，不太了解 ; 的用法字符，所以如果我在那里做错了什么，请纠正我的语法。

更新： 我确实确认前导空格是由

SET HEADING ON

引入的。我怀疑这是我无能为力的标题“特征”。

Answer 1

使用 SQLcl 生成 CSV 文件比 SQLPlus 更容易。 99% 的 SQLPlus 命令都可以与 SQLcl 一起使用。要在 SQLcl 中生成 CSV 文件，您仍然可以使用

SPOOL

创建文件，

SET FEEDBACK OFF

来防止“选择 X 行”。查询后显示的消息，以及

SET SQLFORMAT CSV

轻松从查询生成 CSV 输出。使用此格式，查询结果的第一行将是 CSV 的列标题。

这是它的外观示例

SQLcl: Release 23.3 Production on Mon Jan 08 11:59:56 2024

Copyright (c) 1982, 2024, Oracle.  All rights reserved.

Last Successful login time: Mon Jan 08 2024 11:59:58 -05:00

Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.18.0.0.0

SQL> set feedback off
SQL> set sqlformat csv
SQL> spool test.csv
SQL> select * from dba_objects where rownum <= 10;
"OWNER","OBJECT_NAME","SUBOBJECT_NAME","OBJECT_ID","DATA_OBJECT_ID","OBJECT_TYPE","CREATED","LAST_DDL_TIME","TIMESTAMP","STATUS","TEMPORARY","GENERATED","SECONDARY","NAMESPACE","EDITION_NAME","SHARING","EDITIONABLE","ORACLE_MAINTAINED","APPLICATION","DEFAULT_COLLATION","DUPLICATED","SHARDED","CREATED_APPID","CREATED_VSNID","MODIFIED_APPID","MODIFIED_VSNID"
"SYS","I_FILE#_BLOCK#","",9,9,"INDEX",10-FEB-20,10-FEB-20,"2020-02-10:10:26:41","VALID","N","N","N",4,"","NONE","","Y","N","","N","N",,,,
"SYS","I_OBJ3","",38,38,"INDEX",10-FEB-20,10-FEB-20,"2020-02-10:10:26:41","VALID","N","N","N",4,"","NONE","","Y","N","","N","N",,,,
"SYS","I_TS1","",45,45,"INDEX",10-FEB-20,10-FEB-20,"2020-02-10:10:26:41","VALID","N","N","N",4,"","NONE","","Y","N","","N","N",,,,
"SYS","I_CON1","",51,51,"INDEX",10-FEB-20,10-FEB-20,"2020-02-10:10:26:41","VALID","N","N","N",4,"","NONE","","Y","N","","N","N",,,,
"SYS","IND$","",19,2,"TABLE",10-FEB-20,22-JUL-23,"2020-02-10:10:26:41","VALID","N","N","N",1,"","METADATA LINK","","Y","N","USING_NLS_COMP","N","N",,,,
"SYS","CDEF$","",31,29,"TABLE",10-FEB-20,10-FEB-20,"2020-02-10:10:26:41","VALID","N","N","N",1,"","METADATA LINK","","Y","N","USING_NLS_COMP","N","N",,,,
"SYS","C_TS#","",6,6,"CLUSTER",10-FEB-20,10-FEB-20,"2020-02-10:10:26:41","VALID","N","N","N",5,"","METADATA LINK","","Y","N","","N","N",,,,
"SYS","I_CCOL2","",58,58,"INDEX",10-FEB-20,10-FEB-20,"2020-02-10:10:26:41","VALID","N","N","N",4,"","NONE","","Y","N","","N","N",,,,
"SYS","I_PROXY_DATA$","",24,24,"INDEX",10-FEB-20,10-FEB-20,"2020-02-10:10:26:41","VALID","N","N","N",4,"","NONE","","Y","N","","N","N",,,,
"SYS","I_CDEF4","",56,56,"INDEX",10-FEB-20,10-FEB-20,"2020-02-10:10:26:41","VALID","N","N","N",4,"","NONE","","Y","N","","N","N",,,,
SQL> spool off
SQL> exit
Disconnected from Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.18.0.0.0