What is a constraint? Tell me about its various levels.

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What are the types of triggers in sql?

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.  have a tablle like this: cust acc ----------- a 1 b 2 b 3 c 4 c 5 c 6 I Want below o/p: cust acc --------------- a 1 b 2|3 c 4|5|6 Please any one can you have any ideas share me. I have urgent requirement. CUST         ACC a            dv b            fg b            bh c            mk c            cl c            so result:- A  B   c dv fg mk    bh cl       so

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Any attempt to navigate programmatically to disabled form in a call_form stack is allowed?

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Hi Guys, I have a situation where I need to access the column values from rowtype variable. However, the column names are dynamic. below is sample code: declare Cursor c1 is select * from emp; Cursor c2 is select column_name from xyztable; v_c2 c2%rowtype; v_str varchar2 v_value varchar2(200); begin for rec in c1 loop open c2;---this cursor has column names like EMPLOYEE_ID, FIRST_NAME, LAST_NAME etc. loop fetch c2 into v_c2; exit when c2%notfound; /* now lets say i want to access value of LAST_NAME from cursor c1, so I am writing below code, however it does not work as expected */ v_str:= 'rec.'|| v_c2.column_name; -- this will give me string like "rec.EMPLOYEE_ID" v_value:=v_str; end loop; end loop; end; / Plz help ASAP.Thanks.

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How to set up sql*plus output format in oracle?

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What are crud methods?

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I want to create synonym for table emp but in my pc it is giving insufficient previliges.I am using user scott.Please suggest me.

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How to add, remove, modify users using sql?

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Differentiate between sga and pga.

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What will you get by the cursor attribute sql%found?

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How do you update a sql procedure?

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