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Halloweenamp;#39;s welcome in OCP technology my name is Sheree pal and today Iamp;#39;m going to demonstrate to you how to use for update clause okay so letamp;#39;s see actually for update Clause introduced in Oracle 11g just suppose Iamp;#39;m going to select some record from EMP table slipped a name job celty and hide it from EMP and giving error way clause and job is equal to clock and after via Clause and living here for update for update Clause and place here Sammy column enter so itamp;#39;s showing the record about all clerks how many employees working as a calc in our company in the EMP table okay but here Iamp;#39;m placing for update clause actually for a blade clause looks that row in the EMP table where you use the where conditions into where Clause oh yeah and that locks release only when you issue when you run rollback or commit transition okay so letamp;#39;s see what is the effect of for update Clause suppose you just run on the Select command okay now Iamp;#39
