19 January 2021

#Oracle

Ambari
What is Tablespaces ?
What is Database's schema objects?
What is a SYSTEM tablespace and when it is created?
What is an Oracle table?
What is bulk copy or BCP in Oracle?
What is the relationship among database, tablespace and data file?
What is a snapshot in Oracle database?
What is the difference between hot backup and cold backup in Oracle?
What is library cache?
What is data dictionary cache?
What is save point in Oracle database?
What is hash cluster in Oracle?
What is Tables ?
What is Views ?
What is Indexes ?
What is Synonyms ?
What is the difference between pre-select and pre-query?
What is Form module?
What is Menu module?
What is Pl/SQL Library module?
What is Object Library module?
What is the usage of ANALYZE command in Oracle?
What is SUBQUERIES ?
What is Outer Join?
What is Equi-join ?
What is the usage of control file in Oracle?
What is a synonyms?
What is the usage of synonyms?
What is the difference between TRANSLATE and REPLACE in Oracle?
What is the usage of Save Points in Oracle database?
What is the difference between post-database commit and post-form commit?
What is Logical backup in Oracle?
What is the meaning of recursive hints in Oracle?
What is the use of GRANT option in IMP command?
What is the use of ROWS option in IMP command?
What is the use of INDEXES option in IMP command?
What is the use of IGNORE option in IMP command?
What is the use of SHOW option in IMP command?
What is the use of FILE param in IMP command?
What is RAW datatype?
What is the use of NVL function?
What is COALESCE function?
What is BLOB datatype?
What is the difference between TRANSLATE and REPLACE?
What is the usage of Merge Statement?
What is NULL value in oracle?
What is USING Clause and give example?
What is key preserved table?
What is WITH CHECK OPTION?
What is the use of Aggregate functions in Oracle?
What is a sub query and what are the different types of subqueries?
What is Correlated sub query?
What is Non-Correlated subquery?
What is cross join?
What is Varray ?
What is the difference between rename and alias?
What is a View?
What is a cursor variable?
What is the use of %FOUND
What is the use of %NOT FOUND
What is the use of %ISOPEN
What is the use of %ROWCOUNT
What is an integrity constraint?
What is an ALERT?
What is hash cluster?
What is NULL constraints?
What is NOT NULL constraints?
What is CHECK constraints?
What is DEFAULT constraints?
What is difference between SUBSTR and INSTR?
What is the parameter mode that can be passed to a procedure?
What is the difference between $ORACLE_BASE and $ORACLE_HOME?
What is the fastest query method to fetch data from the table?
What is the maximum number of triggers that can be applied to a single table?
What is the data type of DUAL table?
What is difference between Cartesian Join and Cross Join?
What are the various Oracle database objects?
What are the different types of modules in Oracle forms?
What are the different types of synonyms?
What are the different types of database objects?
What are the limitations of CHECK constraint?
What are the extensions used by Oracle reports?
What are nested tables?
What are temporal data types in Oracle?
What are cursor attributes?
What are SET operators?
What are the attributes of Cursor?
What are the various constraints used in Oracle?
What are the different Oracle Database objects?
What are the differences between LOV and List Item?
What are privileges and Grants?
What types of joins are used in writing SUBQUERIES?
How do you store pictures in a database?
How do you find current date and time in Oracle?
How do we represent comments in Oracle?
How do we display rows from the table without duplicates?
How do we create privileges in Oracle?
How do we get field details of a table?
How to convert a string to a date in Oracle database?
How to display row numbers with the records?
How to display employee records who gets more salary than the average salary in the department?
Can we store pictures in the database and if so, how it can be done?
Can you create a synonym without having a table?
Difference between varchar and varchar2 data types?
How can we delete duplicate rows in a table?
How can we view last record added to a table?
How many memory layers are in the Oracle shared pool?
In which language Oracle has been developed?
What do you understand by Redo Log file mirroring?
What do you mean by GROUP BY Clause?
What is DML?
What will be the syntax to find current date and time in format "YYYY-MM-DD"?
Whether any commands are used for Months calculation? If so, What are they?
What are Schema Objects?
What is a Table?
What is a View?
What is an Index?
What is a Data file?
What is the difference between UNIQUE or PRIMARY KEY Constraint?
What is PL/SQL ?
What is the basic structure of PL/SQL ?
What is the difference between %ROWTYPE and TYPE RECORD ?
What is a cursor ? Why cursor is required ?
What is Raise_application_error ?
What is the difference between a PROCEDURE and FUNCTION ?
What is Overloading of procedures ?
What is a package ? What are the advantages of package ?
What is difference between TRUNCATE and DELETE?
What is a join? Explain the different types of joins?
What is a Subquery?
What is correlated sub-query?
What are the Usages of SAVEPOINTS?
What is ROWID?
What is PRIMARY KEY, UNIQUE KEY, FOREIGN KEY?
What is ON DELETE CASCADE?
What is difference between CHAR and VARCHAR2? What is maximum SIZE allowed for each type?
What will be returned from SIGN(ABS(NVL(-32,0)))?
What is database?
What is a transaction ?
What is implicit cursor and how is it used by Oracle ?
What are the various types of parameter modes in a procedure ?
What are the constructs of a procedure, function or a package ?
What are the parts of a database trigger ?
What are the various types of database triggers ?
What is the advantage of a stored procedure over a database trigger ?
What are cascading triggers? What is the maximum no of cascading triggers at a time?
What are mutating triggers ?
What are constraining triggers ?
What is Oracle database’s physical and logical structure ?
What is the use of Control files ?
What is the use of Data Dictionary ?
What are the states of a rollback segment ? What is the difference between partly available and needs recovery ?
What is the maximum no.of columns a table can have ?
What are the various types of RollBack Segments ?
What are the disadvantages of SQL ?
What is the difference between a view and a synonym ?
What is the difference between foreign key and reference key ?
What is a package cursor ?
What are snap shots and views
Explain the two types of cursors ?
Explain UNION, MINUS, UNION ALL, INTERSECT? INTERSECT returns all commmon rows selected by both queries.
Explain the difference between trigger and stored procedure.
Why Create or Replace and not Drop and recreate procedures ?
How to store the results of a query into a file?
How to create a copy of EMP table without any data?
How to delete the 10th record of EMP table?
How can I protect my PL/SQL source code?
How can you avoid indexes ?
When to create indexes ?
Difference between SUBSTR and INSTR?
Can one read/write files from PL/SQL?
Can one use dynamic SQL within PL/SQL? OR Can you use a DDL in a procedure ? How ?
Can you pass parameters in packages ? How ?
Can you increase the size of a tablespace ? How ?
Can you pass a parameter to a cursor ?
Delete those employees who joined the company 10 years back from today?
Differences between DATE and TIMESTAMP in Oracle
Display the name of employees who joined on the same date?
Find out the number of employees whose salary is greater than their manager salary?
Is there a PL/SQL Engine in SQL*Plus?
Select the count of employees in each dept where count is greater than 3?
What is RAW datatype?
What is the use of NVL function?
What are nested tables?
What is COALESCE function?
What is BLOB datatype?
What is DML?
What is the difference between TRANSLATE and REPLACE?
What is the usage of Merge Statement?
What is NULL value in oracle?
What is USING Clause and give example?
What is key preserved table?
What is WITH CHECK OPTION?
What is the use of Aggregate functions in Oracle?
What do you mean by GROUP BY Clause?
What is a sub query and what are the different types of subqueries?
What is cross join?
What are temporal data types in Oracle?
What is VArray?
What is the difference between rename and alias?
What is a View?
What is a cursor variable?
What are cursor attributes?
What are SET operators?
What are the attributes of Cursor?
What is an integrity constraint?
What is an ALERT?
What is hash cluster?
What is difference between SUBSTR and INSTR?
What is the parameter mode that can be passed to a procedure?
What are the different Oracle Database objects?
What are the differences between LOV and List Item?
What are privileges and Grants?
What is the difference between $ORACLE_BASE and $ORACLE_HOME?
What is the fastest query method to fetch data from the table?
What is the maximum number of triggers that can be applied to a single table?
What is the data type of DUAL table?
What is difference between Cartesian Join and Cross Join?
What are packages in pl SQL and also explain its advantages?
What are the various constraints used in Oracle?
What do you mean by CDB and PDB in Oracle 12c?
What is a trigger and what are its types in Oracle?
What is an Oracle and why it is used?
What is Oracle join syntax?
What is Oracle latest version?
What is PL SQL and why it is used for?
What is the difference between primary key and unique key and foreign key in Oracle?
What is the difference between substr and instr function in Oracle?
What is the dynamic SQL in Oracle?
What is the new features in Oracle 12c?
What is translate in Oracle?
Write a syntax for update query in Oracle?
Write a trigger example in Oracle?
Explain Oracle insert into command?
Explain self joins in oracle?
Explain the difference between delete and truncate?
Explain the difference between replace() and translate() functions in Oracle?
Explain the difference between SAP and Oracle?
Explain the difference between SQL and Oracle?
Explain the features of Oracle?
Explain the truncate in Oracle?
How do we represent comments in Oracle?
How do we display rows from the table without duplicates?
How do we create privileges in Oracle?
How do we get field details of a table?
How can we delete duplicate rows in a table?
How to display row numbers with the records?
How can we view last record added to a table?
How to display employee records who gets more salary than the average salary in the department?
How to convert raw data type into text in Oracle? Explain
How to execute the package in Oracle?
Who developed Oracle & when?
Difference between varchar and varchar2 data types?
In which language Oracle has been developed?
Can we store pictures in the database and if so, how it can be done?
Please explain compound trigger in Oracle?
Please explain drop constraint Oracle?
Please explain joins in oracle?
Please explain oracle data types with examples?
Please explain oracle left join with an example?
Whether any commands are used for Months calculation? If so, What are they?

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