What is P name in SQL?

What does P stand for in SQL?

Data Type SyntaxExplanation (if applicable)decimal(p,s)Where p is a precision value; s is a scale value.realSingle-precision floating point numberdouble precisionDouble-precision floating point numberfloat(p)Where p is a precision value.

What is P in database?

p is prepositional logic formula which may use connectors like and, or, and not. These terms may use relational operators like − =, ≠, ≥, < , >, ≤. For example − σ (Books) Output − Selects tuples from books where subject is 'database'. σ (Books)

What is %s in SQL?

%s is a placeholder used in functions like sprintf. Check the manual for other possible placeholders. $sql = sprintf($sql, "Test"); This would replace %s with the string "Test". It's also used to make sure that the parameter passed actually fits the placeholder.

What is P in mysql?

It's an alias for the table. It's pointless in the example you gave. In a more complex query, it would let you refer to the table as p instead of by its name.