CT-Software

CT-Professional_100 – High-Quality-CBT

Course 5: “Additional address commands, bit operations, datasets and external performs …”

Course 5 focuses on external calls and connections of the SAP® system. For example accessing external data on the server and on the client or calling external programs in a static/dynamic way.

Further the last details of using field symbols are described and it is shown how to create and generate new reports in an indirect way.

Together with the courses 1 – 5 you should be able to solve some typical interface programming jobs. Also it should be possible to write your own small programming tools which support you at your daily work.

How much learning content is available?

The course 5 consists of approx. 2000 text sections with approx. 8500 lines in total and 70 formal and example reports. The report examples are illustrated through approx. 325 overlay drawings within the syntax explanations and during the debugging session.

The single topics of each lesson are subsequently listed here as a continuous text. These are mainly the headings from the single text elements. They give an overview of the volume and the detailed structure of the presented knowledge. Of course these course information are properly arranged in the learning tool. You can determine the processing sequence of the single topics and you can:

  • follow the “red thread or learning path” or
  • branch into another learn mode or
  • call individual courses by using direct access or
  • display text elements or
  • access report examples or
  • use the CT-Debug_Simulator.

A detailed listing of the course content

We subsequently listed the essential contents of each course as continuous text. These are mainly the headings of the single text elements. Please look at the volume of the respective course (… and show us something comparable …). Of course these course information are properly arranged in the learning tool.

Continuous text:

ASSIGN (v1) TO <fs1> -Dynamic addressing . ASSIGN (v1) TO <fs1> (syntax description) . Name of the first command parameter . Location of the declaration . Scope of the variable (v1) . Global variable (v1) . Local variable (v1) . Using parentheses . Variable type . Naming . The field length of v1 . An example . Data field name in capitals . Evaluating the return code . Name of the field symbol . Using angle brackets . Naming . The practice . Scope of the field symbol . Global field symbol . Local field symbol . Addressing of the field symbol . TYPE t. . LOCAL COPY OF (v1) TO <fs1>. . An example . LOCAL COPY OF . TABLE FIELD (v1) TO <fs1>. . An example . TABLE FIELD . Short revision of “TABLES etab” . Searching for the data field (without “TABLE . “TABLE FIELD” reduces the effort of association . Effect in short form . Dynamic association of a data field to … . The first command parameter “(v1)” contains the field name . The field symbol is used like a variable . Usage of external subroutines . The command extensions . Type modification and/or local copy . Additional modification of the data type . Additional creation of a local copy of “(v1)” . Allowing field selection only from the TABLES work area . Further information concerning the general subject “ASSIGN” . Report example 1 – 3 . Time of the association . Dynamic ASSIGN . Application examples . Reading data fields from external tables . The sorting fields are selected by means of parameters . Addressing mode . An example: ASSIGN (BOX) TO <FS1). . Static ASSIGN (1. Command parameter without brackets) . Association of a predefined variable . Addressing modes . Differentiated selection of the associated data field . Which data field types can be associated to field symbols? . Local data field (only valid in the . Global data field (applicable in the entire . Part of an internal structure (field string) . Part of an external structure (table) . Part of a USING parameter . A data field from an external perform … . Data field from a function module … . External subroutines of the function module . Which association order in case of identical field name? . Command extension “ASSIGN TABLE FIELD (v1) TO . No specification of “ASSIGN TABLE FIELD …” . The return code SY-SUBRC . The search in the program pool . Application options in report examples . General information . Global and local data field as field symbol . Internal and external table structure as field symbol . Alternative work area as field symbol . Structure symbol and field symbol . USING parameter as field symbol . Field symbol as connection of main program and subroutine . REPORT-LOCAL-GLOBAL ASSIGN . Example 1 – 3 . Identical data field names . Local field symbol “<LOCFS1>” . Local command parameter “LOCBOX” . Content of the local field symbol <LOCFS1> . Content of the global field symbol <FS1> . Report examples . REPORT-UPRO-ASSIGN . The main program . Modification of main programs . The external subroutine . Supplements in a USER program . ASSIGN COMPONENT …-Addresses of structur components . Short description . ASSIGN COMPONENT x OF STRUCTURE stru1 TO <fs1> . An example . ASSIGN . COMPONENT X OF STRUCTURE T1 . COMPONENT X . Specification of a number as literal . Usage of a variable, that contains a … . Loop processing . OF STRUCTURE stru1 . Using internal structures only . Field strings . Internal tables . The specification of the structure must occur . Not using external tables . Location of the declaration . Scope of the structure “stru1” . Global structure “stru1” . Local structure “stru1” . Data fields of the structure “stru1” . Naming . Evaluating the return code . Instruction word “TO” . <fs1> . Name of the field symbol . Using angle brackets . Naming . The practice . Scope of the field symbol . Global field symbol . Local field symbol . Addressing of the field symbol . TYPE t. . An example . The general effect of “ASSIGN COMPONENT …” . Formal syntax . Formal example . A general report example . Further information about the general subject “ASSIGN” . ASSIGN COMPONENT …(further details) . Dynamic determination of the structure field . Only known structures can be used . External tables . Random access to structure fields . The determination of the data field within the structure . Index as literal . Index in a variable . The field symbol is used like a variable . Structure symbol . Assigning local or global structure fields . Global structure = global or local . Local structure requires local field symbol . The subject of the local or global structure fields . Command extensions . Type modification . Additional modification of the data type . Application options in report examples . General information . Data field selection statically and dynamically . Global and local structures . Connection of structure symbol and field symbol . Example-1 . Example-2 . The system field SY-INDEX . The system field SY-SUBRC . Number of loop iterations . Example-1 . Example-2 . Example-3 . Report example . Step 1 – 5 . IF v1 bitOp …- Der specific IF command . Summary description of the function . O – One (the 1st operand is tested on “1”) . Z – Zero (the 1st operand is tested on “0”) . M – Mixed (the 1st operand is tested on “0 and 1”) . IF v1 bitOP v2 commands1 ELSE commands2 ENDIF . The complete statement for bit comparison with “IF …” . An example: . IF . bitOp (bit operator) . Bit operator: O (One) . An example: . Result: TRUE . Bit operator: Z (Zero) . An example: . Result: TRUE . Bit operator: M (Mixed) . An example: . Result: TRUE . Additional linking through boolean … . Boolean operators . An example: . Brackets . An example: . Additional conditions (logical operators) . LessLT, < . Equal EQ, = . Greater GT, > . Less or equal LE, <=, =< . Not equal NE, <>, >< . Greater or equalGE, >=, => . An example: . commands1 . Commands in the IF branch . An example: . ELSE . Omitting “ELSE” . commands2 . Commands in the ELSE branch . ENDIF . Further IF-command types . Logical comparisons of operands . Comparison of the strings . Comparison of selection criteria . For repetition: “A byte contains 8 bits …” . The byte . The binary code . Stichworte für Hypertextsuche . The binary number . The binary value . Description of the function of “IF v1 bitOp v2” . Testing a bit expression and executing a statement . Using only one-byte X-fields as operands . Literals are not allowed . Determining the condition result . Execution of the TRUE- or FALSE commands . “O” (stands for ONE) . The condition result . “Z” (stands for ZERO) . The condition result . “M”(stands for MIXED) . The condition result . Possible applications in report examples . General information . Explanation of the report output . Example report O . Example 1 – 3 . Example report Z . Example 1 – 3 . Example report M . Example 1 – 3 . Example report CHANGE-BITS . The task . The used bit operators . The smallest addressable unit: the byte . The “positioner” . The report output . Loop number for each iteration . The single processing steps . LOOP AT Txxxx …. ENDLOOP- A phase-out model . The short description . The instruction supplements “LOOP AT Txxx VERSION xtab…” . LOOP AT Txxxx ….ENDLOOP. (Syntax explanation) . Definition in the report . Work area for each external table . Automatic filling of the header line . Reading a selection of table lines . Reading all table entries . SHOW Txxxx . LOOP AT Txxxx VERSION xtab …ENDLOOP . A look in context at “LOOP AT Txxxx …” . Area of application of the instruction . Loop processing . Sequential reading of an external table . Entering the keywords . Commands within the loop . Processing sequence . End of loop processing . No further table data present . Abort of loop processing . The command supplement ” ….VERSION xtab … ” . Variable table name . Header line with other structure . Small rate of occurrence of instruction use . Some single items of information onLOOP AT Txxxx. . Loop processing . The system field SY-TABIX . Filling an internal table . Field symbols are not permissible . Possible applications in report examples . General task definition . Example report “LOOP AT Txxxx” . Task . READ-LOOP-ETAB . READ LOOP ARGUMENT . “LOOP AT Txxxx VERSION xtab” example report . TASK . Reading of any table with Txxxx . Determine table name at runtime . Only process header line as C-field . Set up sufficiently large header line . X-fields-Within the MOVE command . The general description of functions ofMOVE v1 TO v2 . The transfer of X-fields (individual representation) . General information . The field contents in the Memory . “Revaluation” of a fieldby … . A facit . Data entry can occur directly as a half-byte . The conversion of an X-field . The field contents in the print output . The printed output of an X-field . Transfer of an X-field to a C-field . The target field is too small . The target field is too large . Every half-byte receives a “full” … . MOVE(002) TO C(006). . The source field content is dealt with as a string . MOVE(005) TO C(006). . Transfer of an X-field to an N-field . The target field is too small . The target field is too large . The onlyexample . MOVE(002) TO N(005). . The target field must be sufficiently large . MOVE(003) TO N(008). . If the target field is too small … . MOVE(003) TO N(005). . Transfer of an X-field to an I-field . The target field is too small . The target field is too large . The representation form of an I-field . The hexa value is transmitted into . MOVE(003) TO I(004). . An I-field can can also be too small . MOVE(005) TO I(004). . Transfer of an X-field to a P-field . The target field is too small . The target field is too large . The value to be transmitted into a P-field is a . MOVE(003) TO P(007). . The unused digit positions in the P-field are . MOVE(002) TO P(008). . Transfer of an X-field into a D field . The target field is too small . The target field is too large . The hex decimal content is converted into a date . MOVE(001) TO D(008). . Three Bytes in an X-field are sufficient for the . MOVE(003) TO D(008). . The source field information is too large for a D . MOVE(005) TO D(008). . Transfer of an X-field into a T-field . Summary . The target field is too small . The target field is too large . A time is determined from a hexadecimal number . MOVE(001) TO T(006). . Also “realistic” times can be false . MOVE(003) TO T(006). . Transfer of a X-field into an X-field . The target field is too small . The target field is too large . If the target field is larger than the source field … . MOVE(003) TO X(005). . If the target field is too small…. . MOVE(008) TO X(005). . Transfer of an X-field in an F-field . The conversion of a hexadecimal value into a . MOVE(002) TO F(008). . With an X-field it is possible to transmit . MOVE(008) TO F(008). . OPEN DATASET name-Preparation file process . The short description . Writing or read mode selection . OPEN DATA SET name1 FOR INPUT . OPEN DATA SET name1 FOR OUTPUT . OPEN DATA SET name1 FOR APPENDING . Mode of processing per mode … . OPEN DATASET name1 … IN TEXT MODE . OPEN DATA SET name1 … IN BINARY MODE . Positioning within the file . OPEN DATA SET name1 … AT POSITION . Communication with the operating system . OPEN DATASET name1 … MESSAGE v1 . OPEN DATA SET name1 … TYPE type . OPEN DATASET name1 … FILTER bef1 . OPEN DATA SET name1 FOR INPUT IN TEXTMODE MESSAGE msg2 (syntax) . OPEN DATA SET name1 FOR INPUT IN TEXTMODE MESSAGE . General application . OPEN DATA SET . DATASET READ . CLOSE DATA SET . DELETE DATA SET . DATASET NEW-PAGE PRINT LN LIST . Therequirements of the file name . File name as a literal . File name as a variable specification . The length of the variables . Uppercase/lowercase . An example: . Different norms of the operating system . FOR INPUT . MODE IN TEXT . Msg1 MESSAGE . The different command supplements . “OPEN DATA SET name … FOR OUTPUT “ . OUTPUT OPEN DATA SET name1 FOR …. . FOR OUTPUT . OPEN DATA SET name1 FOR APPENDING … . FOR APPENDING . OPEN DATA SET name1 FOR OUTPUT IN BINARY MODE . IN BINARY MODE . OPEN DATASET name1 FOR OUTPUT AT POSITION n2 . AT POSITION n2 . Position specification as a literal . Position specification as a variable content . The practical importance of positioning . Operating system communication . OPEN DATA SET name1 FOR OUTPUT MESSAGE msg2. . Msg2 MESSAGE . OPEN DATA SET name1 … TYPE type . Order1 TYPE . FILTER bef1 OPEN DATA SET name1 … . FILTER bef1 . General notes on the command “OPEN DATA SET …. “ . The command “OPEN DATA SET … ” is often . A small checklist … . It is to be cleared if an external file should be . The number of the files opened simultaneously . The Function Class Module “FILE_GET_NAME “ . Tables for the determination of file names . Table “FILE NAME ” (type: transparent) . Table “FILE PATH ” (Type: transparent) . Table “FILESYS ” (type: transparent) . Table “FILE TEXT ” (type: transparent) . Table “PATH ” (Type: transparent) . Table “OPSYSTEM ” (type: transparent) . Transactions . SF01 (logical file names) . SF02 (logical path) . SF03 (physical path) . SF04 (syntax groups/operating system) . SF05 (syntax groups) . SF06 (replacement name for physical file . No OPEN command before TRANSFER or READ ? . The compatibility of operating system and … . TRANSFER command without previous OPEN command . TRANSFER command without OPEN command (file . Simultaneously processing the same file . Compressed files . Authorization check for file access (from release 3.0) . S_DATASET . S_PATH . The SPTH table . Possible applications in Report-examples . OPEN_000 ( read Test file-1) . OPEN_001 (write test file) . OPEN_002 ( read Test file-2) . OPEN_003 (OPEN … FOR APPENDING …) . OPEN_004 ( TRANSFER … LENGTH v2) . OPEN_005 ( READ DATASET … LENGTH v2) . OPEN_006 (OPEN … IN BINARY MODE FOR . OPEN_007 (OPEN … IN BINARY MODE FOR OUTPUT) . OPEN_008 (OPEN … IN BINARY .. MODE AT . OPEN_009 (OPEN … FOR OUTPUT FILTER . OPEN_010 (OPEN … FOR INPUT FILTER . The responsible use of file names . The report description also applies to other learning . Example report OPEN_000 . The mode . The work area . The record length . Example report OPEN_002 . FORM LESEN-DATASET . FORM DISPLAY-ISATZ . FORM CLOSE DATASET . Example report OPEN_003 . “CHECK-IF-FILE-EXISTS” . If the file is not yet available . “OPEN APPENDING” . “TRANSFER SUPPLEMENTARY DATA” . “CLOSE DATA SET” . Example report OPEN_004 . “FORM OPEN-CHECK” . “FORM TRANSFER FROM-T100 “ . “FORM CLOSE-DATASET ” . Example report OPEN_005 . Example report OPEN_006 . Problem definition . “FORM OPEN-BINARY ” . “FORM EXTENDED-FILE ” . “FORM CLOSE DATASET ” . Example report OPEN_007 . “FORM TRANSFER-BINARY ” . Example report OPEN_008 . “FORM DETERMINING-BYTE-COUNT “ . “FORM OPEN-BINARY-WITH-POSITION ” . OPEN DATA SET FNAME . IN BINARY MODE . FOR INPUT . AT POSITION BYTE NUMBER . MSG MESSAGE . “FORM LESEN-DATEI-DIREKT “ . Example report OPEN_009 . Example report OPEN_010 . PERFORM upro(pname)-external program branch . Summary description of “PERFORM upro(progname)…” . Static external calls . Dynamic external call . Type of the data fields (variables, field strings …) . Shared memory area . COMMON PART . Global memory . “PERFORM upro(progname)” (syntax) . “PERFORM upro(progname) USING v1 v2 …” . PERFORM . The keyword . upro(progname) . If the subprogram does not exist . ” … IF FOUND” . If the external report does not exist . “USING”, “CHANGING”, “TABLES”, “IF FOUND … “ . “… USING p1 p2 …” . “… TABLES itab “ . “… IF FOUND” . “DATA: BEGIN OF COMMON PART name” . “DATA: END OF COMMON PART ” . “FORM upro USING p1 VALUE(p2) CHANGING p3 …” . “FORM upro USING p1 ….” . “FORM upro CHANGING p1 ….” . “FORM upro VALUE(p1) VALUE(p2) …” . “FORM upro VALUE(p1) CHANGING p2 p3 …” . General notes on the static external PERFORM . Additional storage space required . The report name and the subprogram name . The program name . The subprogram name . Confusion of variable names and … . Which subprogram is called externally? . Frequent error messages . Calling a non-existing external … . The length of the COMMON PART is not correct . The called program was not found . Field symbols in the COMMON PART . Number of parameters not matching . Possible applications in report examples . General information . The subprograms . The report output . Report-CALLER . “PERFORM UPRO INTERN-2 …” . “PERFORM UPRO1(progname) USING p1 …” . “PERFORM UPRO INTERN-2 …” . Report-AUFGERUFEN . UPRO-1 . STEP 1 . STEP 2 . STEP 3 . UPRO-2 . Example report-3 . Problem definition . “PERFORM UPRO INTERN-2 …” . “PERFORM UPRO1(progname) USING field string …” . “PERFORM UPRO-INTERN-2 …” . “PERFORM UNTERPROGRAMM-4(progname) TABLES …” . “PERFORM UNTERPROGRAMM-5 TABLES …” . “PERFORM UPRO-6(progname) USING …” (single fields, . Example report-4 . “FORM UPRO-1 USING STRU STRUCTURE FELDLEISTE” . “FORM UNTERPROGRAMM-4 TABLES ….” . “FORM UPRO-6 USING …” (single fields, field . Example report-5 . “PERFORM UPRO-INTERN-2 …” . “PERFORM UPRO1(progname) USING p1 p2 …” . “PERFORM UPRO-XX(prog-y) USING p1 IF FOUND”. . Example report-6 . “FORM UPRO-1 USING p1 VALUE(p2) CHANGING p3” . “FORM UPRO-2 USING p11 p22 p33 …”. . Report-CALLER . “EXPORT v1 … TO MEMORY.” . “PERFORM UPRO-0(progname).” . “IMPORT v1 … FROM MEMORY.” . Report-AUFGERUFEN . “FORM UPRO-0.” . “FORM UPRO-2 USING v1 VALUE(v2) CHANGING v3 …” . REPORT-KLEINE-FALLE-PERFORM . “Parameter fields are not passed” . “Why are the data areas not modified?” . REPORT-CALL-TABLES . PERFORM UNTERPROGRAMM-1(external_program) TABLES … . FORM INTERN-2 TABLES XYTAB STRUCTURE ITAB7 . PERFORM upro in PROGRAM (name) – dynamicalexternal program call . PERFORM upro IN PROGRAM name USING p1 p2 …; . An overview on the subject “external PERFORM” . The dynamic external subprogram call . The usage of the variables “upro” and “pname” . The hint on the static external perform command . A summary description . The variable specification of subprogram and . The subprogram name in a variable . Specification as a constant . The parameter control in the PERFORM call . The type of the data fields . Common memory area . The COMMON PART . The global memory . “PERFORM upro IN PROGRAM name USING …” . “PERFORM (upro) IN PROGRAM (name) USING v1 v2 …” . An example (report-1) . An example (report-2) . PERFORM . The keyword . (upname) or UPNAME (the name of the . Type of the name specification . The subprogram name in a variable . The subprogram name as a constant . If the subprogram does not exist . ” … IF FOUND” . If the external report does not exist . IN PROGRAM . (pgname) or PGNAME (the name of the . The program name as a variable . The program name as a constant . USING/CHANGING/TABLES/IF FOUND … . “… USING p1 p2 … “ . “… TABLES itab” . “… IF FOUND” . “DATA: BEGIN OF COMMON PART name” . “DATA: END OF COMMON PART ” . “FORM upro USING p1 VALUE(p2) CHANGING p3 …” . “FORM upro USING p1 ….” . “FORM upro CHANGING p1 ….” . “FORM upro VALUE(p1) VALUE(p2) …” . “FORM upro VALUE(p1) CHANGING p2 p3 …” . General notes on the dynamic external PERFORM . Additional system resources are required . The report name and the subprogram name . The program name . The subprogram name . Confusion of variable names and parameter names . Which subprogram is called externally? . Missing brackets at the variable perform . Direct call of the current report . Frequent error messages . Call of a non-existing external routine . The called program was not found . The length of the COMMON PART is incorrect . Field symbols in the COMMON PART . Possible applications in report examples . General information . The report output . Example report-1 . “PERFORM (UPNAME) IN PROGRAM (PRNAME) USING …” . Example report-2 . Example report-3 . “PERFORM (UNAME) IN PROGRAM (PNAME) USING feldleiste” . “PERFORM UPRO-INTERN-2 …” . “PERFORM (UNAME) IN PROGRAM (PNAME) TABLES itab1 …” . “PERFORM UNTERPROGRAMM-5 TABLES …” . “PERFORM (UNAME) IN PROGRAM (PNAME) USING diverse” . Example report-4 . “FORM UPRO-1 USING STRU STRUCTURE FELDLEISTE” . “FORM UNTERPROGRAMM-4 TABLES ….” . “FORM UPRO-6 USING …” (single fields, field . READ TEXTPOOL – The text elements of a report . READ TEXTPOOL name INTO itab LANGUAGE x . The syntax and the function of the command . A short description . The supplementary report elements . Report heading (=type R ) . Report name (=type T ) . Column heading (=type H ) . Text elements (= type I ) . Selection texts (= type S ) . “READ TEXTPOOLname INTO itab LANGUAGE x” (syntax) . READ TEXTPOOLname INTO itab LANGUAGE x . READ . TEXTPOOL name . Larger variable field . The variable content . Notation . INTO itab . Supplements to the table structures . An example: . A note: . LANGUAGE x . Some notes on the “READ TEXTPOOL name INTO itab …” . Text elements per report type . TYPE 1 (online report ) . TYPE I (include member ) . TYPE M (module pool ) . TYPE V (posting program ) . Further types . The “TEXT POOL” data structure . TEXT POOL ID (1 byte) . R = report heading . T = list header . H = column heading . I = text elements . P = selection text . TEXTPOOL KEY (3 bytes) . TEXT POOL ENTRY (255 bytes) . Some command application options in report examples . Summary . LANGUAGE report . READ-REPORT-TEXT ELEMENTS USING ‘D’ FORM . ETERMINE SEQUENCEFORM . INFORMATION report . Task . “READ-REPORT-TRDIR FORM” . READ TEXT ELEMENTS REPORT USING REPO LANGUFORM . DETERMINE SEQUENCEFORM . SORT-ZTAB FORM . DISPLAY-TABLE-ZTAB FORM . READ DATASET-Read an external file . READ DATASET name1 INTO satz2 . The syntax definitions of the command “READ DATA SET . Fl2 READ DATA SET name1 INTO; LENGTH v1, …; OPEN DATA . A Short description . The external data base . Before the READ… an “OPEN .. ” is . Reading data from the CLIENT PC . The instruction supplements “… LENGTH v3” . “DATASET READ …” (Syntax explanation) . READ DATA SET name1 INTO record2 . DATA SET name1 . File name as a literal . File name as a variable specification . The length of the variables . Uppercase/lowercase . An example: . Different standards of the operating systems . INTO record2 . The variable work area . READ DATA SET name1 INTO record2 LENGTH v3 . READ DATASET name1 INTO satz2 LENGTH v3 . An example: . READ . Name1 DATA SET . INTO work2 . LENGTH v3 . Some notes on use of the “READ DATASET ….” . The commands of file processing in connection . OPEN . READ . TRANSFER . CLOSE . The problem of the file names . The tables of file name control . SF01 (logical file names) . SF02 (logical path) . SF03 (physical path) . SF04 (syntax groups/operating system) . SF05 (syntax groups) . SF06 (replacement name for physical file . Internal and external files . The agreement with the command “OPEN DATASET… ” . The input area (work area) . The command supplement “READ DATASET … length v3” . The use of internal files on the CLIENT PC . Function Module “WS_UPLOAD” . EXPORTING FILE NAME = client file name . TABLES DATA_TAB = itab1 . Function Module “WS_DOWNLOAD” . EXPORTING FILE NAME = client file name . TABLES DATA_TAB = itab1 . The return code SY-SUBRC . SY-SUBRC = 0000 . SY-SUBRC = 0004 . Some possible applications in report examples . General information . Report READ-SERVER FILE . OPEN-DATASET FORMAT . READ-DATASET FORMAT . DISPLAY-ISATZ FORMAT . Report WS_DOWNLOAD . UPLOAD-FUNCTION FORMAT . DISPLAY-IT100 FORMAT . Report OPEN-FALSE . The supplement “READ DATASET … length v2” . TRANSFER satz1-Writing in an external file . TRANSFER record1 TO Fname2; Copy data of record1 into . ernal data; create external data; Generate . A brief description . The basic command . The “OPEN command” as a prerequisite . Text mode . Binary mode . The instruction supplements ” … LENGTH n3″. . TRANSFER record1 TO Fname2 (syntax) . The length of the transmitted data area . MODE TEXT . BINARY MODE . TO . Fname2 . TRANSFER record1 TO fname2 LENGTH n3 . TRANSFER record1 . TO fname2 . LENGTH n3 . Application information to TRANSFER record1 TO fname2 . No OPEN command before the first TRANSFER command? . Deletion of a file of the same name . BINARY MODE = fixed record length . The file processing commands in connection with one another . OPEN DATA SET . DATASET TRANSFER . CLOSE DATA SET . DATASET READ . DELETE DATA SET . INITIALIZATION . OPEN DATASET FORMAT . CLOSE DATASET FORMAT . Report-DOWNLOAD . BUILD-IT100 FORMAT . DOWNLOAD-FUNCTION FORMAT