CODEWITHSUNDEEP
sqloracle-databaseplsqlddldml
Omer
Omer

Reputation: 10174

Using EXECUTE IMMEDIATE inside PL\SQL Block

Using EXECUTE IMMEDIATE inside PL\SQL block makes the whole block commit immediately. 

begin 

INSERT INTO Customer ( GUID, STATUS, NAME) VALUES (1,1,'xx');

EXECUTE IMMEDIATE 'CREATE TABLE Shop
(
  GUID         NUMBER(16),
  STATUS       NUMBER(1),
  NAME         VARCHAR2(50 BYTE),
)
LOGGING 
NOCOMPRESS 
NOCACHE
NOPARALLEL
MONITORING';

DBMS_OUTPUT.PUT_LINE('DONE:'); 

EXCEPTION  -- exception handlers begin 
  WHEN OTHERS THEN  -- handles all other errors 
  DBMS_OUTPUT.PUT_LINE('Error occured, rollback...'); 

 ROLLBACK;
end;

As you realized I do not even use COMMIT. About above code,

"Insert into" statement works, but "create table" statement throws exception because there is already a table with the same name in the database.

Both I did not have any commit statement and code block fell exception and rolled back when I looked at the database I saw that insert had worked and there was a new row. It was expected that it should not have been there because there is no commit and also rollback worked..

How can I make rollback when exception occurs.

Upvotes: 3

Views: 5518

Answers (1)

Ankit Bajpai
Ankit Bajpai

Reputation: 13509

You can ty this PL/SQL Code:

begin 

EXECUTE IMMEDIATE 'CREATE TABLE Shop
(
     GUID         NUMBER(16),
     STATUS       NUMBER(1),
     NAME         VARCHAR2(50 BYTE),
)
LOGGING 
NOCOMPRESS 
NOCACHE
NOPARALLEL
MONITORING';
DBMS_OUTPUT.PUT_LINE('DONE:'); 

INSERT INTO Customer ( GUID, STATUS, NAME) VALUES (1,1,'xx');

EXCEPTION  -- exception handlers begin 
    WHEN OTHERS THEN  -- handles all other errors 
    DBMS_OUTPUT.PUT_LINE('Error occured, rollback...'); 

ROLLBACK;
end;

So firstly it will create the table, if exception occurs it will rollback the transaction and insert statement will not work. Hope this will work for you..

Upvotes: 3

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