Updating multiple columns using forall azdg dating belgiun

Posted by / 12-Aug-2020 06:30

Updating multiple columns using forall

Bulk binds and bulk loading are nothing new; in fact, the feature came out in Oracle 8i.This was a time when Oracle Parallel Servers roamed the land, pfiles were all the rage, and connecting internal was a fading fad. by providing these columns after "FOR UPDATE OF" I am not sure what is the exact problem when we want to update multiple columns of different tables.

Regardless, here is the code used to perform the insert: declare 2 type t_customers is table of customers%rowtype; 3 lv_customers_tab t_customers; 4 begin 5 select * bulk collect into lv_customers_tab from customers; 6 forall rec in lv_customers_tab.first ..

Keep in mind that this is a very pedestrian example of what you can do with bulk binds.

While bulk collecting into memory and using FORALL to perform the insert does present noticeable performance benefits, it’s very unimaginative and dull.

I have logged in as SH and created a copy of the CUSTOMERS table by using the query: select dbms_metadata.get_ddl(‘TABLE’, ‘CUSTOMERS’) from dual; desc customers Name Null?

Type ----------------------------------------- -------- ---------------------------- CUST_ID NOT NULL NUMBER CUST_FIRST_NAME NOT NULL VARCHAR2(20) CUST_LAST_NAME NOT NULL VARCHAR2(40) CUST_GENDER NOT NULL CHAR(1) CUST_YEAR_OF_BIRTH NOT NULL NUMBER(4) CUST_MARITAL_STATUS VARCHAR2(20) CUST_STREET_ADDRESS NOT NULL VARCHAR2(40) CUST_POSTAL_CODE NOT NULL VARCHAR2(10) CUST_CITY NOT NULL VARCHAR2(30) CUST_CITY_ID NOT NULL NUMBER CUST_STATE_PROVINCE NOT NULL VARCHAR2(40) CUST_STATE_PROVINCE_ID NOT NULL NUMBER COUNTRY_ID NOT NULL NUMBER CUST_MAIN_PHONE_NUMBER NOT NULL VARCHAR2(25) CUST_INCOME_LEVEL VARCHAR2(30) CUST_CREDIT_LIMIT NUMBER CUST_EMAIL VARCHAR2(30) CUST_TOTAL NOT NULL VARCHAR2(14) CUST_TOTAL_ID NOT NULL NUMBER CUST_SRC_ID NUMBER CUST_EFF_FROM DATE CUST_EFF_TO DATE CUST_VALID VARCHAR2(1) SQL desc customers2 Name Null?

updating multiple columns using forall-30updating multiple columns using forall-49updating multiple columns using forall-67

The first value is assigned to the first column in the list, the second value is assigned to the second column in the list, and so on. Only rows that meet the search condition are updated.

One thought on “updating multiple columns using forall”

  1. ” Plus, you’re probably building a level of intimacy that doesn’t match where the relationship actually is, or “playing house.” Where emotional boundaries are unguarded, physical boundaries are more easily blurred.