Αποτελέσματα Αναζήτησης
15 Μαρ 2010 · You can do this: UPDATE table1 SET table1.value = (SELECT table2.CODE. FROM table2 . WHERE table1.value = table2.DESC) WHERE table1.UPDATETYPE='blah'
19 Φεβ 2015 · SELECT * FROM PERSON p. INNER JOIN CONTACT on CONTACT.PERSON_ID = p.PERSON_ID. WHERE CONTACT.CURRENT_YEAR_ID = ( SELECT CURRENT_YEAR_ID FROM CURRENT_YEAR WHERE DEFAULT_YEAR = 1. ); Tried another variant : UPDATE CONTACT. SET CONTACT.PHONE = p.PHONE, CONTACT.FAX = p.FAX. FROM PERSON as p. WHERE p.PERSON_ID = CONTACT.PERSON_ID.
24 Μαΐ 2017 · Usually, when you need to join multiple tables in an UPDATE, MERGE is the solution. merge into address a1 using ( select p.address_fk, ta2.tempaddress1 from premise p join account ac on (ac.id = p.account_fk) join tempaddresstable ta2 on (ac.ext_ref = ta2.tempextref) ) ta1 on (a1.id = ta1.address_fk) when matched then update set a1.address1 ...
21 Σεπ 2017 · You can get this by adding the gather_plan_statistics hint to your query. Then calling DBMS_Xplan.display_cursor. Like so: set serveroutput off update /*+ gather_plan_statistics */t set x = x + 1; select * from table (dbms_xplan.display_cursor (null, null, 'ALLSTATS LAST')); SQL_ID g4ya70274azsu, child number 0 ...
26 Μαΐ 2023 · I understand that using indexes can help speed up joins of two or more tables. The following example joins two tables, emps and depts, using their shared department_id column: select last_name, department_name. from emps join depts. using(department_id);
10 Οκτ 2007 · We are performing a batch update of large partitioned table each day (on 10g/RAC); the update changes around 10% of the whole table. The update is performed via MERGE statement with UPDATE clause only and we run it independently for each partition in the table.
24 Μαΐ 2004 · My understanding from the manuals is that I can use FOR UPDATE with a join cursor and potentially update columns in each table in the join. But in practice I have not been able to make it work. Here's a sample script: set serveroutput on. create table t_dave1.
