By Eric Glendinning

This topic-centered direction covers key computing services whereas constructing the 4 skills.
The Teacher's Book presents complete help for the non-specialist, and a solution key.

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Extra resources for Basic English for Computing: Teacher's Book

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Procedure Division * ***************************************************** * PROCEDURE DIVISION USING CUST-FNAME, CUST-LNAME, CUST-ADDR, CUST-NO, MARK, MARK-ERROR-TEXT. EXEC SQL WHENEVER SQLERROR GOTO SQL-ERROR END-EXEC. DISPLAY "ADD_CUSTOMER: START". MOVE "OK" TO MARK-ERROR-TEXT. * * Get new customer number * * MOVE "ADD_CUSTOMER: GET HIGH CUSTOMER NO" TO MARK. DISPLAY "ADD_CUSTOMER: GET HIGH CUSTOMER NO". EXEC SQL SELECT HI_CUST_NO+1 INTO :NEW-CUST-NO FROM HI_CUST_NO END-EXEC.

In these cases, you may be able to benefit from the fortunate situation that both SQLJ and JDBC can be mixed in the same source logic. The majority of the sample code included in this book and the accompanying CD-ROM is provided in both SQLJ and JDBC versions. 4 JDBC driver types To allow the generic functions and methods implemented by JDBC to be translated into database-specific calls, each database vendor must deliver a JDBC driver to act as an interface. 1 Note that DB2 for OS/390 has introduced several features (such as the dynamic statement cache) that help to reduce the overheads associated with dynamic SQL and bring JDBC and SQLJ performance closer together.

CUSTOMER table. * * * * The file PREPCUST contains the preparation JCL * * for this program. * * * ***************************************************** DATA DIVISION. WORKING-STORAGE SECTION. EXEC SQL INCLUDE SQLCA END-EXEC. 01 NEW-CUST-NO PIC S9(9) COMP. * DSNTIAR PARMS 01 ERROR-MESSAGE. 02 ERROR-LEN PIC S9(4) COMP VALUE +240. Chapter 3. Java sample application: the ACME software company 29 02 ERROR-TEXT PIC X(80) 77 ERROR-TEXT-LEN PIC S9(9) OCCURS 3 TIMES INDEXED BY ERROR-INDEX. COMP VALUE +80.

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Basic English for Computing: Teacher's Book by Eric Glendinning


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