BASIC
ABORT
ASSIGNMENT
BOOLEAN
BRANCHING
BSD
COMPILE.TIME
CONSTANT
DIMENSION
DYNAMIC
EQUATE
EXECUTE
IO
MATH
NLS
SQL
STRING
SYSTEM
TABLE
TAPE
TBD
TRANSACTION
TRANSFORM
PROC
BRANCHING
BUFFER
EXECUTE
TCL
ANALYSIS
IO
SYSTEM
| A | Index: A B C D E F G I L N O P R S T U W Idea Code | |
| ABORT | Stops execution and returns to command level. | |
| B | Index: A B C D E F G I L N O P R S T U W Idea Code | |
| BEGIN CASE | BEGIN CASE and END CASE are designed to bracket a set of CASE statements. | |
| BREAK KEY | Determins whether or not a user can issue a break command to interrupt the execution of a program. | |
| C | Index: A B C D E F G I L N O P R S T U W Idea Code | |
| CALL | Transfer control to a subroutine, with the expectation that control will transfer back when the subroutine encounters a RETURN. | |
| CASE | CASE statements are a cleaner form of cascading IF-THEN-ELSE. | |
| CHAIN | Use this command to transfer control from on program to another with no method for returning. | |
| CONTINUE | Skips to NEXT or RETURN in a loop. | |
| D | Index: A B C D E F G I L N O P R S T U W Idea Code | |
| DEFFUN | Makes a function available withing a program. The function must exist in its own item. | |
| DO | DO is a looping command. | |
| E | Index: A B C D E F G I L N O P R S T U W Idea Code | |
| ELSE | It is used only in conjunction with another branching command. THEN is the "Yes" path. ELSE is the "No" path. | |
| END | Used by several different branching commands to end a conditional block of code. It can also be used to establish physical end of program, a point after which the compiler will ignore all text in a program. | |
| END CASE | BEGIN CASE and END CASE are designed to bracket a set of CASE statements. | |
| END ELSE | It is used only in conjunction with another branching command. THEN is the "Yes" path. END ELSE is the "No" path. | |
| ENTER | Use this command to transfer control from on program to another with no method for returning. | |
| EXIT | Allows process to exit out of the innermost loop. Should be managed by proper use of the inherent UNTIL / WHILE structure. | |
| F | Index: A B C D E F G I L N O P R S T U W Idea Code | |
| FOR | This is a looping command, which is a special form of branching command, designed to repeat a block of code. | |
| FUNCTION | This is an alternative to the SUBROUTINE command. | |
| G | Index: A B C D E F G I L N O P R S T U W Idea Code | |
| GO | Use this command when you want to jump to a different point in the code with no need to return. | |
| GOSUB | GOSUB allows a program to detour to a label within the same program and then resume from the original point when it encounters a RETURN. | |
| GOTO | Use this command when you want to jump to a different point in the code with no need to return. | |
| I | Index: A B C D E F G I L N O P R S T U W Idea Code | |
| IF | This is the primary branching command. I is used to include and excludeblocks of code dynamically at runtime. | |
| INPUTIF | Allows several things to be mashed into a single, poorly thought out command. Use INPUT instead and increase readability. | |
| ISNULL | ||
| ISNULLS | ||
| L | Index: A B C D E F G I L N O P R S T U W Idea Code | |
| LOCATE | There are two syntaxes for the LOCATE. Both are explained here. | |
| LOOP | Initiates a DO loop. | |
| N | Index: A B C D E F G I L N O P R S T U W Idea Code | |
| NEXT | Part of the FOR loop. | |
| NOT | NOT reverses the logic of a boolean test. True is false. False is true. | |
| NULL | A compiler directive used to represent a NOOP condition. It means 'do nothing at this step.' | |
| NUMS | ||
| O | Index: A B C D E F G I L N O P R S T U W Idea Code | |
| ON | Use ON as part of the GOSUB command or as part of the WRITE command. | |
| P | Index: A B C D E F G I L N O P R S T U W Idea Code | |
| PERFORM | Executes a command as if issued from the command line. | |
| R | Index: A B C D E F G I L N O P R S T U W Idea Code | |
| READNEXT | Gets a value (typically an ID) from a select list, then moves the pointer forward to the next value. | |
| REPEAT | This command indicates the end of a LOOP. | |
| RETURN | Used to mark the end of a local subroutine (See: GOSUB) or external subroutine (See: CALL). | |
| S | Index: A B C D E F G I L N O P R S T U W Idea Code | |
| STEP | Optional part of the FOR command. | |
| STOP | Stops execution and returns to command level. | |
| SUBR | Marks a program as a subroutine. | |
| SUBROUTINE | Marks a program as a subroutine. | |
| T | Index: A B C D E F G I L N O P R S T U W Idea Code | |
| THEN | It is used only in conjunction with another branching command. THEN is the "Yes" path. ELSE is the "No" path. | |
| TO | Used in FOR, EQU, and EQUATE. | |
| TRANSACTION ABORT | Aborts all of the work since TRANSACTION START was issued. | |
| U | Index: A B C D E F G I L N O P R S T U W Idea Code | |
| UNTIL | Manges the exit from a DO or FOR loop. | |
| W | Index: A B C D E F G I L N O P R S T U W Idea Code | |
| WHILE | Manges the exit from a DO or FOR loop. | |
| Idea | Index: A B C D E F G I L N O P R S T U W Idea Code | |
| BRANCHING | Without branching, programs would execute each command once, in order. Branching allows us to repeat sections of code, perform some sections conditionally, and skip others based on external events. | |
| CASE 1 | CASE 1 is a common construct in BASIC. | |
| Code | Index: A B C D E F G I L N O P R S T U W Idea Code | |
| FUNCTION | Example of the FUNCTION and DEFFUN commands versus the SUBROUTINE and CALL commands. | |
| VALIDATION | Examples of validation logic. | |
