HEIDENHAIN TNC 320 User Manual page 39

9.9 Accessing tables with SQL commands............................................................................................ 349
Introduction........................................................................................................................................... 349
A transaction......................................................................................................................................... 350
Programming SQL commands..............................................................................................................352
Overview of the soft keys.................................................................................................................... 353
SQL BIND..............................................................................................................................................354
SQL SELECT......................................................................................................................................... 355
SQL FETCH........................................................................................................................................... 357
SQL UPDATE.........................................................................................................................................358
SQL INSERT.......................................................................................................................................... 358
SQL COMMIT....................................................................................................................................... 359
SQL ROLLBACK.................................................................................................................................... 359
9.10 Entering formulas directly.................................................................................................................. 360
Entering formulas.................................................................................................................................. 360
Rules for formulas.................................................................................................................................362
Example of entry...................................................................................................................................363
9.11 String parameters............................................................................................................................... 364
String processing functions.................................................................................................................. 364
Assign string parameters...................................................................................................................... 365
Chain-linking string parameters.............................................................................................................365
Converting a numerical value to a string parameter.............................................................................366
Copying a substring from a string parameter.......................................................................................367
Reading system data............................................................................................................................ 368
Converting a string parameter to a numerical value.............................................................................369
Testing a string parameter.................................................................................................................... 370
Finding the length of a string parameter..............................................................................................371
Compare alphabetic priority.................................................................................................................. 372
Reading out machine parameters......................................................................................................... 373
HEIDENHAIN | TNC 320 | Conversational Programming User's Manual | 9/2016
39