What is cartesian join in sql?

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What is data abstraction in sql?

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Dear All, Question for this Week Find out possible error(s) (either at compile time or at runtime) in the following PL/SQL block. State the reason(s) and correct the errors. Declare Cursor C1 is select ename, sal, comm from emp; Begin For i in C1 Loop If i.comm between 299 and 999 then Dbms_output.put_line(i.Ename || ‘ ** Good Commission’); Elsif i.comm > 999 then Dbms_output.put_line(i.Empno || ‘ ** Very Good Commission’); close C1; Else Dbms_output.put_line(i.Ename || ‘ ** ’ ||nvl(i.comm,‘O’)); End if; End Loop; End;

7 Answers   Accenture,

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what is SCALAR Queries?

2 Answers   ITC Infotech,

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What are the advantages and disadvantages, compared to the standard SQL and SQL*plus ?

2 Answers  

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What is rollback?

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what is union? : Sql dba

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What is the purpose of the primary key?

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what is global temporary tables and how use that tables in pl/sql packages

1 Answers   Cap Gemini,

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What programs use sql?

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what are the different tables present in mysql, which type of table is generated when we are creating a table in the following syntax: create table employee (eno int(2),ename varchar(10)) ? : Sql dba

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What are database links used for?

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