By default, the Oracle DBaaS Cloud Service blocks access port 1521 used by tnsping. You have to open the port before you can connect using SQL Developer or Connecting to another instance via sqlplus. Log in to the Oracle Database Cloud Service and click on the service name which you already created. Note down the […]
All posts by Skant Gupta
Create Database on Oracle Cloud
We will show you how to create database on oracl cloud database. Log into your Oracle Cloud Services account Go to the “Oracle Database Cloud Service” and create a new service Select “Oracle Database Cloud Service” as the type of subscription from the Dropdown Select the SSH Public Key as shown in the attached figure […]
How to make a table read only in Oracle
Oracle 11g allows tables to be marked as read-only using the ALTER TABLE command. ALTER TABLE table_name READ ONLY; ALTER TABLE table_name READ WRITE; Let’s create a table and make it read-only. CREATE TABLE Skant (id NUMBER); INSERT INTO Skant VALUES (1); ALTER TABLE Skant READ ONLY; Any DML statements that affect the table data […]
Oracle12c Multitenant Architecture
Oracle 12c Architecture
VARIABLE In Oracle 12.2
You may use SQL*Plus to test queries with bind variables. Here is what you do before 12.2: SQL> variable text char SQL> exec :text:=’X’ PL/SQL procedure successfully completed. SQL> select * from DUAL where DUMMY=:text; D – X You can now simply: SQL> variable text char=’X’ SQL> select * from DUAL where DUMMY=:text; […]