1. 第一步,输入sys as sysdba 2. 输入select * from all_users; 输入 语法:create user 用户名 identified by 密码; ###(用户名和密码自己取,尽量避免纯数字) 然后授权 输入:grant connect,resource to oracl; 再连接一下:connect oracl/oracl; 然后重新打开SQLplus,... 查看...
Select * from customer where last_name like ‘M%’; Select * from customer where last_name like ‘%tin%; 总结: = != 不等于 ^= 不等于 ^= 不等于 <> 不等于 < > <= >= in ( ) 等于括号内任一成员 not in ( ) 不等于括号内任一成员 between A and B 大于等于A与小于等于...
A RefCursor bind variable can be used to reference PL/SQL cursor variables in stored procedures. PRINT myRefCursor EXECUTE somePackage.someProcedure(:myRefCursor) VARIABLE on its own will display the definitions made. WHENEVER OSERROR Exit if an OS error occurs WHENEVER SQLERROR Exit if an SQL ...
In iSQL * Plus click the Logout button to log out of Oracle Database . { EXIT | QUIT} [ SUCCESS|FAILURE|WARNING|n|variable|:BindVariable ] [ COMMIT|ROLLBACK ] -- -24 GET 将SQL文件的内容读入SQL * Plus缓冲区。查看保存的脚本 Loads a SQL statement or PL / SQL block from a script ...
假设当前执行命令为:select * from tab; (a)ppend 添加文本到缓冲区当前行尾 a order by tname 结果:select * from tab order by tname; (注:a后面跟2个空格) (c)hange/old/new 在当前行用新的文本替换旧的文本 c/*/tname 结果:select tname from tab; ...
Instead of terminating a session, you can cancel a high-load SQL statement in a session. When you cancel a DML statement, the statement is rolled back. ALTER SYSTEM CANCEL SQL 'SID, SERIAL[, @INST_ID][, SQL_ID]'; If @INST_ID is not specified, the instance ID of the current sessio...
包裹在一列名为备注长值,您可以输入 If you replace WRAP with WORD_WRAP, REMARKS looks like this: If you specify TRUNCATE, REMARKS looks like this: To print the current date and the name of each job in the top title, enter the following. Use the EMPLOYEES table of the HR schema instead...
To wrap long values in a column named REMARKS, you can enter 请注意,例如分为两个命令列规范。首先定义的别名。NET,和第二个使用NET定义的格式。 还注意到,在第一个命令,你必须输入表达式,完全按照你输入SELECT命令。否则,SQL * Plus中不能匹配列命令到相应的列。 包裹在一列名为备注长值,您可以输入 CO...
To change the width of adatatype ton, use FORMAT An. (A stands for alphabetic.) If you specify a width shorter than the column heading, SQL*Plus truncates the heading. DATE Columns The default width and format of unformatted DATE columns in SQL*Plus is derived from the NLS_DATE_FORMAT...
假设当前执行命令为:select * from tab; (a)ppend 添加文本到缓冲区当前行尾 a order by tname 结果:select * from tab order by tname; (注:a后面跟2个空格) (c)hange/old/new 在当前行用新的文本替换旧的文本 c/*/tname 结果:select tname from tab; ...