--清除一些设置,常用的就是清屏了 CLEAR SCREEN SQL> help clear CLEAR ----- Resets or erases the current value or setting for the specified option. CL[EAR] option ... where option represents one of the following clauses: BRE[AKS] BUFF[ER] COL[UMNS] COMP[UTES] SCR[EEN] SQL TIMI[NG] CLEAR SCREEN is not available in iSQL*PlusSQL>
--PL/SQL Developer命令,清屏幕,不使用与sql plus Connected as yeexun
SQL> set time on; 5:39:05 SQL> select count(*) from scott.emp;l 2 5:39:22 SQL> select count(*) from scott.emp;
SQL> help clear CLEAR
----- Resets or erases the current value or setting for the specified option. CL[EAR] option ... where option represents one of the following clauses:
BRE[AKS]
BUFF[ER]
COL[UMNS]
COMP[UTES]
SCR[EEN]
SQL
TIMI[NG] CLEAR SCREEN is not available in iSQL*PlusSQL>
--PL/SQL Developer命令,清屏幕,不使用与sql plus
Connected as yeexun
SQL> set time on;
5:39:05 SQL> select count(*) from scott.emp;l
2
5:39:22 SQL> select count(*) from scott.emp;
COUNT(*)
----------
14
5:39:34 SQL> select * from emp
2 /
select * from emp
ORA-00942: table or view does not exist
5:39:43 SQL> clearConnected as yeexun
5:41:15 SQL>