Embedded SQL
Standard SQL operations are carried out by COBOL using integrated SQL statements. Before the application program is compiled, the SQL processor preprocesses these statements.
The host’s primary language is COBOL. Applications are written in COBOL-DB2 use both DB2 and COBOL.
With a few small exceptions, embedded SQL statements function much like standard SQL (Structured Query Language) statements. A host variable is a predetermined group of variables to which the output of a query is often directed. The SELECT statement now includes a second INTO clause.
Database Interface in COBOL
Programs in COBOL communicate with the DB2 Database. Data Base2 is DB2, and it was created by IBM. The database is a relational one. The relational information is kept in the TABLE format, which consists of multiples of rows and attributes (Columns).
DB2 is generally used for storing sizable amounts of Mainframe application data. It is comparable to SQL but has several enhanced features.
The following terms are part of the COBOL vocabulary for the Database Interface:
- Embedded SQL
- DB2 Application Programming
- Host Variables
- SQLCA
- SQL Queries
- Cursors
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