DATABASE FUNDAMENTALS
BASICS OF BIG DATA
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Detailed explanation-1: -A table has records (rows) and fields (columns).
Detailed explanation-2: -Symbols are a symbolic reference to some type of data or code such as a global variable or function. For instance, the printf() function is going to have a symbol entry that points to it in the dynamic symbol table .
Detailed explanation-3: -A compiler maintains two types of symbol tables: a global symbol table which can be accessed by all the procedures and scope symbol tables that are created for each scope in the program. To determine the scope of a name, symbol tables are arranged in hierarchical structure as shown in the example below: . . .
Detailed explanation-4: -The symbol table is used to store essential information about every symbol contained within the program. Virtually every phase of the compiler will use the symbol table: The initialization phase will place keywords, operators, and standard identifiers in it.