jBC Programmers Reference Guide

Preface
What is TAFC
TAFC releases
What is T24
jBC/jBASE features

Introduction to some jBC syntax features

Note
Note 2
Variables visibility and lifetime
To wrap a long line
Several statements on the same line
Comments
String variables
Numeric variables
Boolean variables
Dynamic arrays
Dimensioned arrays
Other notes

Guidelines for writing the source code

Recommendations (not rules)

Environment variables relevant to jBC programming

Minimum set of variables necessary to start development
Customize work folders and files location
Runtime errors handling
Regional settings
Diagnostics and tracing
Other

Compilation

Introduction to BASIC...CATALOG and jcompile

Data files

Introduction to jBASE/TAFC data files
Create/delete hashed file
Create and list the data
Adding dictionary items
Change of size and format, statistics, properties
UD type

System ("@") variables

@AM (@FM), @VM, @SM, @TM
@CALLSTACK
@CODEPAGE
@DATA
@DATE
@DAY
@EOF
@FILENAME
@FOOTER.BREAK
@HEADER.BREAK
@ID
@LEVEL
@LOCALE
@LPTRHIGH
@MONTH
@PARASENTENCE
@PATH
@PID
@RECORD
@SELECTED
@TERMTYPE
@TIME
@TIMEZONE
@TTY
@UID
@USER.ROOT, @USER.THREAD and @USERSTATS

jBC Functions and Statements (@ - E)

jBC Functions and Statements (F - J)

jBC Functions and Statements (K - O)

jBC Functions and Statements (P - T)

jBC Functions and Statements (U - X)

UNASSIGNED
UNIQUEKEY
UNLOCK
UDTEXECUTE
UPCASE
UTF8
WAKE
WEOF
WEOFSEQ
WRITE
WRITEBLK
WRITELIST
WRITESEQ
WRITESEQF
WRITET
WRITEU
WRITEV
WRITEVU
WRITEXML
XLATE
XMLTODYN
XMLTOXML
XTD

Embedded SQL for jBC

Introduction to embedded SQL
EMBEDDED SQL COMPILER OPTION
TROUBLESHOOTING

@DAY

Day of month from @DATE (no leading zero included):

       CRT @DAY         ;* 4 for the date used in the sample right above

Last update: Sat, 16 Jul 2022 15:34