Oracle 18c New Features
Introduction
In this blog i am going to explain three new Oracle 18c New Features which is useful for oracle database administrators
SET ROWLIMIT
ORAVERSION UTILITY
SET FEEDBACK OPTION
SET ROWLIMIT command enables users to set a limit for the number of rows displayed for a query.
for limiting number of rows to 5 in Oracle 18c New Features
SQL> set rowlimit 5
SQL> select username from dba_users;
USERNAME
—————————
SYS
SYSTEM
ABHIRAM
CHAITANYA
MANASA
5 rows selected. (rowlimit reached)
for limiting number of rows to 3
SQL> set rowlimit 3
SQL> select username from dba_users;
USERNAME
————————
SYS
SYSTEM
CHAITANYA
3 rows selected. (rowlimit reached)
Oraversion Utility in Oracle 18c New Features
A new utility Oraversion has been introduced in Oracle 18c New Features Which provides Oracle database version/release related information.
oraversion -help
This program prints release version information.
These are its possible arguments:
-compositeVersion: Print the full version number: a.b.c.d.e.
-baseVersion: Print the base version number: a.0.0.0.0.
-majorVersion: Print the major version number: a.
-buildStamp: Print the date/time associated with the build.
-buildDescription: Print a description of the build.
-help: Print this message.
$ oraversion -compositeVersion
18.3.0.0.0
$ oraversion -baseVersion
18.0.0.0.0
$ oraversion -majorVersion
18
$ oraversion -buildStamp
180628094320
$ oraversion -buildDescription
Release_Update
In Oracle 18c New Features, we can display the sql_id of the sql queries we are running using set feedback option.
By default it will be OFF.
SQL> set feedback ON SQL_ID
SQL> select name from v$database;
NAME
———
ORA18C
1 row selected.
SQL_ID: 0btb065ytg2v0 – > This is the sql_id of the query .
Note : Info on Oracle 18c New Features it maybe differ in your environment like production,testing,development etc and naming conventions
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