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1). 设置当前session是否对修改的数据进行自动提交
SQL>SET AUTO[COMMIT]{ON|OFF|IMM[EDIATE]| n}
2).在用start命令执行一个sql脚本时,是否显示脚本中正在执行的SQL语句
SQL> SET ECHO {ON|OFF}
3).是否显示当前sql语句查询或修改的行数
SQL> SET FEED[BACK] {6|n|ON|OFF}
默认只有结果大于6行时才显示结果的行数。如果set feedback 1 ,则不管查询到多少行都返回。当为off 时,一律不显示查询的行数
4).是否显示列标题
SQL> SET HEA[DING] {ON|OFF}
当set heading off 时,在每页的上面不显示列标题,而是以空白行代替
5).设置一行可以容纳的字符数
SQL> SET LIN[ESIZE] {80|n}
如果一行的输出内容大于设置的一行可容纳的字符数,则折行显示。
6).设置页与页之间的分隔
SQL> SET NEWP[AGE] {1|n|NONE}
当set newpage 0 时,会在每页的开头有一个小的黑方框。
当set newpage n 时,会在页和页之间隔着n个空行。
当set newpage none 时,会在页和页之间没有任何间隔。
7).显示时,用text值代替NULL值
SQL> SET NULL text
8).设置一页有多少行数
SQL> SET PAGES[IZE] {24|n}
如果设为0,则所有的输出内容为一页并且不显示列标题
9).是否显示用DBMS_OUTPUT.PUT_LINE包进行输出的信息。
SQL> SET SERVEROUT[PUT] {ON|OFF}
在编写存储过程时,我们有时会用dbms_output.put_line将必要的信息输出,以便对存储过程进行调试,只有将serveroutput变量设为on后,信息才能显示在屏幕上。
10)SQL> SET WRA[P]{ON|OFF}
当输出的行的长度大于设置的行的长度时(用set linesize n命令设置),当set wrap on时,输出行的多于的字符会另起一行显示,否则,会将输出行的多于字符切除,不予显示。
11).是否在屏幕上显示输出的内容,主要用与SPOOL结合使用。
SQL> SET TERM[OUT] {ON|OFF}
在用spool命令将一个大表中的内容输出到一个文件中时,将内容输出在屏幕上会耗费大量的时间,设置set termspool off后,则输出的内容只会保存在输出文件中,不会显示在屏幕上,极大的提高了spool的速度。
12).将SPOOL输出中每行后面多余的空格去掉
SQL> SET TRIMS[OUT] {ON|OFF}
13)显示每个sql语句花费的执行时间
set TIMING {ON|OFF}
14). 遇到空行时不认为语句已经结束,从后续行接着读入。
SET SQLBLANKLINES ON
Sql*plus中, 不允许sql语句中间有空行, 这在从其它地方拷贝脚本到sql*plus中执行时很麻烦. 比如下面的脚本:
select deptno, empno, ename
from emp
where empno = '7788';
如果拷贝到sql*plus中执行, 就会出现错误。这个命令可以解决该问题
15).设置DBMS_OUTPUT的输出
SET SERVEROUTPUT ON BUFFER 20000
用dbms_output.put_line('strin_content');可以在存储过程中输出信息,对存储过程进行调试
如果想让dbms_output.put_line(' abc');的输出显示为:
SQL> abc,而不是SQL>abc,则在SETSERVEROUTPUT ON后加format wrapped参数。
16). 输出的数据为html格式
set markup html
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