Updating multiple columns using forall uban love dating site

Posted by / 13-Aug-2020 10:51

Updating multiple columns using forall

lv_customers_7 merge into customers2 c2 8 using (select cust_id from customers c1 9 where c1.cust_id = lv_customers_tab(rec).cust_id) match 10 on (match.cust_id = c2.cust_id) 11 when matched then 12 update set cust_first_name = lv_customers_tab(rec).cust_first_name, 13 cust_last_name = lv_customers_tab(rec).cust_last_name, 14 cust_gender = lv_customers_tab(rec).cust_gender, 15 cust_year_of_birth = lv_customers_tab(rec).cust_year_of_birth, 16 cust_marital_status = lv_customers_tab(rec).cust_marital_status, 17 cust_street_address = lv_customers_tab(rec).cust_street_address, 18 cust_postal_code = lv_customers_tab(rec).cust_postal_code, 19 cust_city = lv_customers_tab(rec).cust_city, 20 cust_city_id = lv_customers_tab(rec).cust_city_id, 21 cust_state_province = lv_customers_tab(rec).cust_state_province, 22 cust_state_province_id = lv_customers_tab(rec).cust_state_province_id, 23 country_id = lv_customers_tab(rec).country_id, 24 cust_main_phone_number = lv_customers_tab(rec).cust_main_phone_number, 25 cust_income_level = lv_customers_tab(rec).cust_income_level, 26 cust_credit_limit = lv_customers_tab(rec).cust_credit_limit, 27 cust_email = lv_customers_tab(rec).cust_email, 28 cust_total = lv_customers_tab(rec).cust_total, 29 cust_total_id = lv_customers_tab(rec).cust_total_id, 30 cust_src_id = lv_customers_tab(rec).cust_src_id, 31 cust_eff_from = lv_customers_tab(rec).cust_eff_from, 32 cust_eff_to = lv_customers_tab(rec).cust_eff_to, 33 cust_valid = lv_customers_tab(rec).cust_valid 34 when not matched then 35 insert values lv_customers_tab(rec); 36 commit; 37 end; 38 / As you can see, the one unfortunate part of the code is having to write out every column of the UPDATE part of the MERGE statement as UPDATE SET ROW does not work here.However, it does provide an opportunity to see better what is contained in the lv_customers_tab object.

Despite Tom Kyte’s argument that a FORALL MERGE is not required as MERGE is always a bulk capable event that already worked on sets, it appears that Oracle has provided the ability regardless.Finally, if we make a TABLE OF EXAMPLE%ROWTYPE then we have a collection of EXAMPLE_ID: NUMBER, VALUE: VARCHAR2, MYDATE: DATE combinations.This format is no different from an actual table except that it is completely variable based inside a chunk of PL/SQL code.In my opinion the real power of bulk binds comes in its ability to manipulate the collections in memory using standard PL/SQL code and then perform a straight DML to the DB with the results of the object.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 ..

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Using “select * from tab2 minus select * from tab2” compares every column of every row against the other table for comparison (something that came in very handy for testing replication back in 8i).

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