Updating inside an oracle


15-Jul-2017 06:23

Nidhi" id="ctl00_m_m_i_ctl00_gr_ctl25_bestanswerbody" class="textarea-bestanswerhidden" name="bestanswerbody" answerbody Id="1455371" / You can try something like this, depending upon the value of a column, you can either call any function, procedure which return value to the trigger...

This clause can also be extended to lock only the intended table in the SELECT query containing more than one table in joins using the FOR UPDATE OF clause.Balaji Do use the WHEN clause for improved performance. create or replace trigger Trig On Test1 BEFORE insert or update on mytest1 referencing OLD as old NEW as new for each row WHEN (new.col1 = 100) begin :new.col3 = 500; end; Brian updating/inserting inside of these procedures, they should be returning values back to the trigger and then you populate these values into :new.column thx" id="ctl00_m_m_i_ctl00_gr_ctl13_bestanswerbody" class="textarea-bestanswerhidden" name="bestanswerbody" answerbody Id="1455208" / you can call any number of procedure, but instead of updating/inserting inside of these procedures, they should be returning values back to the trigger and then you populate these values into :new.column thx create or replace trigger TRBIU_Test Employees before insert or update on Employees referencing OLD as old NEW as new for each row WHEN (new.employee_id = 1001) begin :new.email := [email protected]'; end; Hope this would help!create or replace trigger Trig On Test1 BEFORE insert or update on mytest1 referencing OLD as old NEW as new for each row WHEN (new.col1 = 100) begin :new.col3 = 500; end; Brian" id="ctl00_m_m_i_ctl00_gr_ctl09_bestanswerbody" class="textarea-bestanswerhidden" name="bestanswerbody" answerbody Id="1455177" / oops, yes - Roman is right. Nidhi" id="ctl00_m_m_i_ctl00_gr_ctl15_bestanswerbody" class="textarea-bestanswerhidden" name="bestanswerbody" answerbody Id="1455206" / you can use before insert or update trigger, something like this create or replace trigger TRBIU_Test Employees before insert or update on Employees referencing OLD as old NEW as new for each row WHEN (new.employee_id = 1001) begin :new.email := [email protected]'; end; Hope this would help!create or replace trigger Trig On Test1 after insert or update on mytest1 referencing OLD as old NEW as new for each row WHEN (new.col1 = 100) begin :new.col3 = 500; end; Brian IF :new.col1 = 100 THEN :new.col3 = 300 END IF; Let me know why this solution won't work in your situation.

Balaji" id="ctl00_m_m_i_ctl00_gr_ctl07_bestanswerbody" class="textarea-bestanswerhidden" name="bestanswerbody" answerbody Id="1455176" / Change your trigger to before insert and instead of calling another procedure use the below if statement IF :new.col1 = 100 THEN :new.col3 = 300 END IF; Let me know why this solution won't work in your situation.

UPDATE Table1 T1 SET T1= (SELECT T2FROM Table2 T2 WHERE T2= T1.id), T1= (SELECT T2FROM Table2 T2 WHERE T2= T1.id) WHERE T1IN (SELECT T2FROM Table2 T2 WHERE T2= T1.id); The full example is here: beef is in having the columns that you want to use as the key in parentheses in the where clause before 'in' and have the select statement with the same column names in parentheses.



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