What is pseudo columns ? Name them?

What is pseudo columns ? Name them?
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1 Answer

Answer :

A pseudocolumn behaves like a table column, but is not actually stored
in the table. You can select from pseudocolumns, but you cannot
insert, update, or delete their values. This section describes these
pseudocolumns:
* CURRVAL
* NEXTVAL
* LEVEL
* ROWID
* ROWNUM
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Related questions

What is pseudo columns ? Name them?

Description : What is pseudo columns ? Name them?

Last Answer : A pseudocolumn behaves like a table column, but is not actually stored in the table. You can select from pseudocolumns, but you cannot insert, update, or delete their values. This section describes these pseudocolumns: * CURRVAL * NEXTVAL * LEVEL * ROWID * ROWNUM

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If results of the serum bilirubin, serum ALP, LDH and AST determinations suggest obstructive jaundice, the best confirmatory test would be the estimation of (A) Serum ALT (B) Serum 5’ nucleotidase (C) Serum Pseudo cholinesterase (D) None of these

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Description : Which is a Pseudo Halogen -?

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