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Then, you can declare a record based on record type that you’ve defined.
The following illustrates the syntax of the defining programmer-defined record with SET SERVEROUTPUT ON SIZE 1000000; DECLARE TYPE t_name IS RECORD( first_name employees.first_name%TYPE, last_name employees.last_name%TYPE ); r_name t_name; -- name record n_emp_id employees.employee_id%TYPE := 200; BEGIN SELECT first_name, last_name INTO r_name FROM employees WHERE employee_id = n_emp_id; -- print out the employee's name DBMS_OUTPUT.
Most developers use the classic SYSDATE function, but Oracle Database now offers several functions to provide variations of this information, as shown in Table 1.
PUT_LINE, Oracle Database implicitly converts them to strings, using the default format masks for the database or the session (as specified by the National Language Settings NLS_DATE_FORMAT parameter).The quiz questions are shown below and also at PL/SQL Challenge (plsqlchallenge.com), a Website that offers online quizzes for the PL/SQL language.You can read and take the quiz here in and then check your answers in the next issue.There are three datatypes you can use to work with dates and times: DECLARE l_today_date DATE := SYSDATE; l_today_timestamp TIMESTAMP := SYSTIMESTAMP; l_today_timetzone TIMESTAMP WITH TIME ZONE := SYSTIMESTAMP; l_interval1 INTERVAL YEAR (4) TO MONTH := '2011-11'; l_interval2 INTERVAL DAY (2) TO SECOND := '15 '; BEGIN null; END; Working with intervals and time stamps with time zones can be very complicated; relatively few developers will need these more advanced features.This article focuses on the core DATE and TIMESTAMP types, along with the most commonly used built-in functions. With such an abundance of riches, how do you decide which of these date-and-time datatypes to use?