Interview Questions Answers.ORG
Interviewer And Interviewee Guide
Interviews
Quizzes
Home
Quizzes
Interviews DB Oracle Interviews:Concepts and ArchitectureData AccessDatabase ArchitectureDatabase ManagementDatabase Security OracleDistributed ProcessingFlexfieldForms ReportsGeneral OracleMemory ManagementMTO-SAP Financial AccountingOCIOracle AOLOracle AROracle Backup RecoveryOracle D2KOracle DatabaseOracle Database DeveloperOracle DB OptimizationOracle DBAOracle DeveloperOracle ETLOracle Forms 3.0Oracle Forms 4.0Oracle GLOracle PL-SQLOracle RMANOracle ScenariosOracle SecurityOracle SQLOracle System ArchitectureOracle Technology Network (OTN)Programmatic ConstructsRAC (Real Application Clusters)SQL Plus
Copyright © 2018. All Rights Reserved
Oracle Database Interview Question:
How To Assign Query Results to Variables?
Submitted by: AdministratorIf you want to assign results from SELECT statements to variables, you can use the INTO clause, which an extension of SELECT statements for PL/SQL. The sample code below shows some good example on INTO clause:
DECLARE
total NUMBER;
now DATE;
fname VARCHAR2(10);
lname VARCHAR2(10);
BEGIN
SELECT COUNT(*) INTO total FROM employees;
DBMS_OUTPUT.PUT_LINE('Count = ' || TO_CHAR(total));
SELECT SYSDATE INTO now FROM DUAL;
DBMS_OUTPUT.PUT_LINE('Now = ' || TO_CHAR(now, 'SSSSS'));
SELECT first_name, last_name INTO fname, lname
FROM employees
WHERE employee_id = 100;
DBMS_OUTPUT.PUT_LINE('Name = ' || fname || ' ' || lname);
END;
/
Count = 107
Now = 82375
Name = Steven King
Submitted by: Administrator
DECLARE
total NUMBER;
now DATE;
fname VARCHAR2(10);
lname VARCHAR2(10);
BEGIN
SELECT COUNT(*) INTO total FROM employees;
DBMS_OUTPUT.PUT_LINE('Count = ' || TO_CHAR(total));
SELECT SYSDATE INTO now FROM DUAL;
DBMS_OUTPUT.PUT_LINE('Now = ' || TO_CHAR(now, 'SSSSS'));
SELECT first_name, last_name INTO fname, lname
FROM employees
WHERE employee_id = 100;
DBMS_OUTPUT.PUT_LINE('Name = ' || fname || ' ' || lname);
END;
/
Count = 107
Now = 82375
Name = Steven King
Submitted by: Administrator
Copyright 2007-2024 by Interview Questions Answers .ORG All Rights Reserved.
https://InterviewQuestionsAnswers.ORG.
https://InterviewQuestionsAnswers.ORG.