Latest Answer: in oracle null is a undefined value,something value is there dut we can not manipulated it. in c null is a zero or any valid data ...
Latest Answer: Also When we migrate from Legacy system to Oracle, we need to use CHAR to make sure that we capture the data properly. ...
Latest Answer: Constraints are the conditions it can set while creating the table. To eliminate duplicates, not null values and also check the conditions..Triggers are used when the event occurs. ...
Latest Answer: The answer for this normalization is good. If u don't mine can u give me one more example for normalization. ...
Latest Answer: Logs increase rapidly when large amount of data are inserted/deleted/updated. when Commit/Rollback is issued. ...
Latest Answer: ther is Physical structure & Logical structurePhysical structure Consits of 3 files one or more data files two ...
Latest Answer: Primary Key: 1) One Primary Key per Table2) By Default creates Clustred Index3) Cannot Have Null values.Unique Key1) Can have multiple Unique keys.2) By default creates Non-Clustred Index.3) Can Have one Null value.Shoot a question on MSSql concepts.Thanks ...
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