WebBefore 11g, you can mark the tablespace read-only for the duration of the alter table: alter tablespace tab_ts read only. In 11g, you can mark the table as read-only to prevent updates during an alter table: alter table mytab read only. You can verify that the table is read-only with this command: select table_name, read_only from dba_tables WebNow we want to add a column named "DateOfBirth" in the "Persons" table. We use the following SQL statement: ALTER TABLE Persons. ADD DateOfBirth date; Notice that the new column, "DateOfBirth", is of type date and is going to hold a date. The data type specifies what type of data the column can hold. For a complete reference of all the data ...
How to check in Oracle if table is read only? - Stack …
WebAug 26, 2016 · [oracle@testsrv]$ sqlplus / as sysdba SQL> create user juser_read_only identified by test; SQL> grant create session to user_read_only; SQL> grant select any table to user_read_only; Once you have granted these privileges you can connect as the new user. WebMar 6, 2024 · The conceptual rule for read only partitions is that Oracle must not allow any change to the data that would change the data at the time a partition was set to read only. Oracle provides data immutability for the data as it existed when a … cu flower shop
Read-Only Tables in Oracle Database 11g Release 1
WebSep 26, 2024 · ALTER TABLE READ ONLY. If you just want NO data of the table can be modified permanently or temporarily, you may change the attribute of the table into READ ONLY mode, no table lock is required. SQL> alter table employees read only; Table altered. SQL> select read_only from all_tables where owner = 'HR' and table_name = 'EMPLOYEES'; … 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 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. cufi summit dates in july 2022