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

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

COBOL – Data Layout COBOL Layout is a description of the usage of each field and its values. The data description entries…

COBOL – Divisions COBOL division is the topmost component of the COBOL program and the most important one. This generally contains one…

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…