what is cobol

COBOL – Installation There are many free Mainframe Emulators available for the Windows operating system, which can be used to write and…

COBOL – Conditional Statements Depending on certain conditions specified by the programmer, conditional statements are used to change the execution flow. The…

COBOL – Database Interface In COBOL, programs interact with DB2 Database. DB2 is Data Base2, which is developed by IBM. It is…

COBOL – File Access Mode Every file organization (In our previous section, we discussed many file organizations) has different modes of access.…

COBOL – File Handling Verbs File handling verbs are used to perform multiple file operations. The file handling terms are as follows.…

COBOL – File Handling COBOL also supports file handling like C/C++ languages, but the file concept is distinct from the C or…

COBOL – Internal Sort Sequential files are used very commonly in data processing applications. The records in these files usually need to…

COBOL – Loop Statements There are some set of statements in a program that needs to be executed repeatedly, such as reading…

COBOL – Program Structure Before defining the program structure of COBOL, you must know the syntax of a COBOL program. COBOL Syntax…

COBOL – String Handling String handling statements are used in COBOL to perform operations of string manipulation. COBOL provides three types of…