WebIf you have MANAGE TABLESPACE system privilege, you can only perform the following operations: Take the tablespace online or offline Begin or end a backup Make the … WebApr 29, 2014 · 3.内部锁: 由oracle自己管理以保护内部数据库结构 3)oracle锁的粒度 1. 行级锁(TX):阻止该行上的DML操作,直到Commit或者Rollback 2. 表级锁(TM): 3. 数据库级锁: eg: 将数据库锁定为只读模式 alter database open read only;
Locks and ORA-00054 error - dba-oracle.com
WebIf an external table is created without the NOLOG syntax then both READ and WRITE must be granted to SELECT from it. External tables are READ ONLY. Insert, update, and delete can not be performed. Dependencies Object Privileges SELECT SELECT ANY TABLE System Privileges Actions As SYS Create Directory and grant privileges WebThis Oracle ALTER TABLE example will add a column called customer_name to the customers table that is a data type of varchar2 (45). In a more complicated example, you could use the ALTER TABLE statement to add a new column that also has a default value: ALTER TABLE customers ADD city varchar2 (40) DEFAULT 'Seattle'; In this example, the … signs and symptoms of bee sting
ALTER TABLE - Oracle
WebSep 10, 2012 · alter table TABLE_NAME read only; : I am getting error Invalid Alter Table command. I revoked CREATE TABLE, CREATE VIEW , CREATE SESSION Privileges and … WebNow let us make the table “books” as read-only by using the alter command. The query for Oracle Make Table Read Only. ALTER TABLE books read only; Output:-Table altered. Now the written permission is removed. let us check if the table can be edited /altered or inserted with any date. INSERT INTO books VALUES(2, 'One Indian Girl'); WebSep 10, 2010 · Oracle Database 11gR1 provides the ability to create read only tables with a simple ALTER TABLE statement. The command ALTER TABLE …. READ ONLY will make a table read only. In order to make a table read only you have to have the ALTER TABLE or ALTER ANY TABLE privilege. SQL> alter table countries read only; Table altered. theragun indigo