So, we can easily find all the constraints on the table in Oracle using data dictionary views. We can then take whatever action like modify, disable, or drop, we want to take on these constraints. Constraints are enforcing data integrity rules in the Oracle database and we must be careful...
1. How to check the consistency the backup , why i am can not see my table ? 2. How to set NBU script when in one box solaris have 3 instance oracle ? for example each instance different oracle home and password and user the oracle owner Many thanks if anyone can share knowledge abo...
The insert statement adds a new row or rows in a table in theOracle database. We generally use it after we have created a table in the database. One important point to remember is that while inserting records into a table, we must provide a value for every NOT NULL value. Let us lo...
You can check index on atablein Oracle usingDBA_INDEXESview and using dba_segments you can check size of index in Oracle. To find index on a table and its size you can also use user_indexes and user_segment views. Important view used in the Query Useful views to get index details: As...
Let execute the query in and check the result. As we can see in the screenshot above the query displays the details. Example #2 – Using Partition by Hash to Create a Table In this example, we will create a table product with two columns. Let us look at the query below. ...
of hundred of Gigabytes in size. These databases are known as Very Large Databases (VLDB). From Oracle Ver. 8.0 Oracle has provided the feature of table partitioning i.e. you can partition a table according to some criteria . For example you have a SALES table with the following structure...
How do I check if EmpID EE# exists in SupervisorID column and categorize it based on Manager or Individual Contributor in OBIEE. Here's the table for reference. Currently, consider there are only 2 columns EmpID EE# and SupervisorID. I need a formula t...
In dbForge Studio for Oracle, pivot tables are created from the built-in Query Builder. Open a query document to select it as a data source for a pivot table. In Database Explorer, select required tables from your database and drag-and-drop them to the query document. They are displayed...
Dump file set for RAJ.SYS_EXPORT_TABLE_01 is: /home/oracle/DIR1/test_01.dmp /home/oracle/DIR2/test_01.dmp If you wish to compress the size , then you can usecompression=allin the expdp command. For import also you can use the similar method. ...
Next, we issue our table definition to create the new table. And that’s it! Free Oracle SQL Tuning Guide Checkout my FREE guide,7 SQL Tuning Secrets You Can Use Immediately, Even If You’ve Never Tuned a Query In Your Life!