create table t_name(id number,name varchar2(10));
drop table t_name;
select * from table_name where id = 2 ;
insert into table_name(c_01,c_02) values(1,'Terry');
update table_name set name = 'Tyron' where id = 1;
delete from table_name where id = 3;
declare
v_01 number(5,2);
begin
v_01 := 100/6;
dbms_output.put_line(v_01);--16.67
end;
/
select * from user_source where name ='procedure_name';--获取已创建存储过程的代码
select * from user_procedures;--查询已创建的存储过程
show error procedure procedure_name;--查询存储过程的错误
commit;
rollback;
select * from tab;
describe tab_name;
connect sys/123 as sysdba;
alter user u_name account unlock;
alter user u_name identified by 123;
select * from v$nls_parameters;
show user;
set serveroutput on;
set linesize 150;
set pagesize 20;
column c_01 format a20;
