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New Message on BDOTNET
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From: Gogi7735
Message 5 in Discussion
hi Vinod, i am creating the trigger on the oracle table from VB.net
Function that accepts table name ,in that function i have written code for the trigger
cretaion using Command objects ExecuteNonQuery method.this function will be invoked
by the client application for a particular event. The Trigger code in oracle is as
follows --Row level Trigger on the table DEPT --Track table is RS_REPORT
CREATE OR REPLACE TRIGGER TR_DEPT
AFTER INSERT OR UPDATE OR DELETE ON DEPT
FOR EACH ROW
DECLARE COUNTER NUMBER:=0;
BEGIN
IF INSERTING THEN
INSERT INTO RS_REPORT VALUES (RS_REPORT_SLNO.NEXTVAL,:NEW.ROWID,'DEPT','I',0,0);
END IF;
IF UPDATING THEN
SELECT COUNT(*) INTO COUNTER FROM RS_REPORT WHERE RS_REPORT_TABLENAME = 'DEPT'
AND RS_REPORT_ROWID=:NEW.ROWID AND RS_REPORT_STATUS IN (0,1);
IF(COUNTER <= 0 ) THEN
INSERT INTO RS_REPORT VALUES (RS_REPORT_SLNO.NEXTVAL,:NEW.ROWID,'DEPT','U',0,0);
END IF;
END IF;
IF DELETING THEN
DELETE FROM RS_REPORT WHERE RS_REPORT_TABLENAME ='DEPT' AND RS_REPORT_ROWID=:NEW.ROWID
AND RS_REPORT_STATUS =0;
END IF;
END;
i have generalized the trigger creation for oracle tables.(task became easier because
of rowid)
Now the problem shifts to SQL Server to write generic trigger creation given table
table for a vb.net function
i have reached up to identying the primary key columns and struck at getting the
primary key column value
The code for sql triger i have written is
CREATE TRIGGER TR_SAM
ON sam
FOR INSERT,UPDATE
AS
declare @V_KEY1 varchar(100)
declare @V_DATAKEY varchar(100)
declare @V_PRIMVAL varchar(100)
declare @V_KEY2 smallint
declare @V_RecNo int
declare @strQry as varchar(500)
create table #TPKEYS
(
TABLE_QUALIFIER varchar(75),
TABLE_OWNER varchar(20),
TABLE_NAME varchar(100),
COLUMN_NAME varchar(150),
KEY_SEQUENCE smallint,
PK_NAME varchar(75)
)
create table #TPValues
(
colValues varchar(200)
)
insert into #TPKEYS exec sp_pkeys @table_name ='sam'
SET @V_RecNo = (Select Count(*) FROM #TPKEYS)
if(@V_RecNo >1)
begin
PRINT 'more than 1'
end
else
begin
SET @V_KEY1 = (SELECT COLUMN_NAME FROM #TPKEYS )
PRINT '@V_KEY1'[EMAIL PROTECTED]
-----Struck here to het the primary key column value
SET @V_DATAKEY = (SELECT @V_KEY1 FROM INSERTED )
print 'Primary key Value '[EMAIL PROTECTED]
end
i am not a dedicated database guy execuse me for not following the coding
conventions.
Regards
-Srini
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