Job offersCompaniesTestsBlogI'm an employerSign upLog in
fr
fr
Home>Users>Koala rare
developer avatar
Koala rare
Contribution
86Contributions
3888Contributions played
Tests
0Tests completed
0Questions completed
Moderation
288Questions
1Ratings
Achievements
or
Technology
Profession
Test
Sort by
Newest
Most popular
Last review
Filter by
Published
35
Not published
1
To review
0
35 questions
Easy
2 votes182 runs0 comment

What type of join returns all rows in the left-hand table, even if they have no match in the right-hand table?

Tech support officier
Koala rareat Feb 11, 2025
Easy
2 votes170 runs0 comment

How to rename a column in an existing table in Oracle?

Tech support officier
Koala rareat Feb 11, 2025
Easy
2 votes95 runs0 comment

What is the main role of a VPC in GCP?

DevOps
networking
security
Koala rareat Feb 4, 2025
Easy
1 vote162 runs0 comment

What is the result of this Oracle query?

Tech support officier
NVL
Koala rareat Feb 11, 2025
Medium
1 vote155 runs0 comment

Which Oracle tool can be used to analyze SQL query performance?

Tech support officier
sql
Koala rareat Feb 11, 2025
Expert
1 vote150 runs0 comment

What does the following SQL query return?

Tech support officier
database
sql
Koala rareat Feb 11, 2025
Hard
1 vote149 runs0 comment

Where does Oracle log system errors and critical events ?

Tech support officier
logging
troubleshooting
Koala rareat Feb 11, 2025
Hard
1 vote143 runs0 comment

What type of index is recommended for columns with few distinct values in Oracle?

Tech support officier
indexes
bitmap
Koala rareat Feb 11, 2025
Medium
0 vote161 runs0 comment

What happens after executing this code in Oracle?

Tech support officier
transactions
rollback
Koala rareat Feb 11, 2025
Easy
0 vote155 runs0 comment

What is the main function of the `DBMS_SCHEDULER` package in Oracle?

Tech support officier
database
scheduling
Koala rareat Feb 11, 2025
Easy
0 vote144 runs0 comment

What does this PL/SQL code do?

Tech support officier
cursors
loops
Koala rareat Feb 11, 2025
Medium
0 vote142 runs0 comment

What are the primary uses of a Materialized View in Oracle?

Tech support officier
Koala rareat Feb 11, 2025
Hard
0 vote138 runs0 comment

What does the "INSERT /*+ APPEND */" instruction do in Oracle?

Tech support officier
sql
insert
direct path
Koala rareat Feb 11, 2025
Medium
0 vote137 runs0 comment

What is the role of the SYSTEM tablespace in Oracle?

Tech support officier
database
tablespace
Koala rareat Feb 11, 2025
Easy
0 vote134 runs0 comment

How to grant SELECT rights on a table in Oracle?

Tech support officier
Koala rareat Feb 11, 2025
Hard
0 vote133 runs0 comment

What is the length of the string "\u00e9" in Oracle?

Tech support officier
Koala rareat Feb 12, 2025
Medium
0 vote132 runs0 comment

Which Oracle architecture component contains the in-memory data cache?

Tech support officier
SGA
Koala rareat Feb 11, 2025
Medium
0 vote132 runs0 comment

How to backup a database with RMAN in Oracle?

Tech support officier
backup
RMAN
Koala rareat Feb 11, 2025
Easy
0 vote131 runs0 comment

What's the difference between VARCHAR2 and CHAR in Oracle?

Tech support officier
varchar2
char
Koala rareat Feb 11, 2025
Easy
0 vote119 runs0 comment

What happens after executing this code in Oracle?

Tech support officier
transactions
rollback
Koala rareat Feb 11, 2025