Read command

hi all,
i am looping over an internal table.
in that loop i am reading another table like this
loop at itab1 into wa1.
read table itab into wa with key aufnr > wa1-order1
aufnr < wa1-order2.
endloop.
BUT the problem is in read statement it doesnt allow greater and less signs( >) (<)
how can i suffice this needcan anybody help?
urgent

HI,
I HAVENT STARTED THE CODING YET .
but i will tell u the requirement
there is a database table having three fields order_from(aufnr) order_to(aufnr) and order_type(char1).
there are only three records in this table.
now i a have an internal table where in i have a field named aufnr.
now i need to compare this aufnr with order_from and order_to.
remember this aufnr should be greater than order_from value and less than ordr_to.
how will i do this

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>
ranu sharma wrote:
>
>
>     CLEAR: wa_vbrK, WA_LIKN, WA_MALI, WA_VBPA,WA_LFA1,
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To read a single line of any table, use the statement:
READ TABLE <itab> <key> <result>.
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To use the table key of <itab> as a search key, enter <key> as follows:
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In the second case, you have to supply the values of each key field explicitly. If you do not know the name of one of the key fields until runtime, you can specify it as the content of a field <n i > using the form (<n i >) = <f i >. If the data types of <f i > are not compatible with the key fields, the system converts them.
The system searches for the relevant lines as follows:
Standard tables
Linear search, where the runtime is in linear relation to the number of table entries.
Sorted tables
Binary search, where the runtime is in logarithmic relation to the number of table entries.
Hashed tables
The entry is found using the hash algorithm of the internal table. The runtime is independent of the number of table entries.
Using a Different Search Key
To use a key other than the table key as a search key, enter <key> as follows:
READ TABLE <itab> WITH KEY = <f> <result>.
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READ TABLE <itab> WITH KEY <k1> = <f1> ... <k n> = <f n> <result>.
In the first case, the whole line of the internal table is used as the search key. The contents of the entire table line are compared with the contents of field <f>. If <f> is not compatible with the line type of the table, the value is converted into the line type. The search key allows you to find entries in internal tables that do not have a structured line type, that is, where the line is a single field or an internal table type.
In the second case, the search key can consist of any of the table fields <k 1 >...<k n >. If you do not know the name of one of the components until runtime, you can specify it as the content of a field <n i > using the form (<n i >) = <f i >. If <n i > is empty when the statement is executed, the search field is ignored. If the data types of <f i > are not compatible with the components in the internal table, the system converts them. You can restrict the search to partial fields by specifying offset and length.
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If you use the COMPARING addition, the specified table fields <f i > of the structured line type are compared with the corresponding fields of the work area before being transported. If you use the ALL FIELDS option, the system compares all components. If the system finds an entry with the specified key <key> and if the contents of the compared fields are the same, SY-SUBRC is set to 0. If the contents of the compared fields are not the same, it returns the value 2. If the system cannot find an entry, SY-SUBRC is set to 4. If the system finds an entry, it copies it into the target work area regardless of the result of the comparison.
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Examples
DATA: BEGIN OF LINE,
COL1 TYPE I,
COL2 TYPE I,
END OF LINE.
DATA ITAB LIKE HASHED TABLE OF LINE WITH UNIQUE KEY COL1.
DO 4 TIMES.
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LINE-COL2 = SY-INDEX ** 2.
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SKIP.
WRITE: / LINE-COL1, LINE-COL2.
http://help.sap.com/saphelp_47x200/helpdata/en/fc/eb35f8358411d1829f0000e829fbfe/content.htm
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DiegoF.

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Do you guys have any recommendation of which would be better (whether it would be better to use fflush(stdout) or fprintf(stderr, "") )? Is one of these solutions more appropriate than the other, or are they both the same in effect?
Neither. Don't write command-line tools that depend on the terminal. fflush(stdout) is more tedious to use in the code, but more robust. Otherwise, you would have some of your output going to stdout and some of it going to stderr, which becomes a hassle. But it is only a hassle when you are dealing with command-line tools that are using the command line as an interface, and those things are always a hassle. It is better to stick to stdout and then you can more easily pipe the output of one program to the input of another. If you are going to break that functionality, you might as well write a real GUI. If you do your command-line tool correctly, you can easily write a GUI wrapper for it and have both GUI and good command-ilne functionality.
I don't really know anything about this stuff, but you mentioned that it's generally a bad idea to write command-line apps that have dependencies on the Terminal. Do you know of any other way to achieve the type of pause I'm trying to achieve without using the Terminal?
No. If you want to have a user interface, you have to interact. Unix was designed around the idea of a toolbox of simple programs that can be combined (piped) together to do clever things. You shouldn't have a requirement for terminal interaction. The basic functionality should be entirely driven by the command line so your tool could be easily used by other tools. If you really want an interface, add one, but require a "-i" flag to trigger interactive mode or maybe use "isatty()" to find out automatically (The "i" flag would be more robust though).
Consider the shell itself. It is, by definition, an interactive program. Right? Wrong. It can be run non-interactively too. In fact, non-interactive behavior is the default.
I've heard of them before, but don't know anything about them. If anyone has spare time, could you give me an explanation of what they do (doesn't have to be anything in detail -- just tyring to get some really basic idea of what they are, and what all the fuss over them is about). Thanks for your reply, eric.
It is an easy to use library for (fully) interacting with the terminal. It was a bigger deal before everyone had graphical user interfaces. There are umpteen different kinds of terminals and configurations and curses knows them all. You can even do text windows. Still, it is "easier" than interacting with the terminal, but only because the terminal is so cryptic.
Tron55555 wrote:
P.S. -- on a separate note, can anyone tell me, when formatting a quote on these forums, how I can write who's quote is it? When the quote says, for example, "etresoft wrote..." -- how do I do that? I checked the Help section under How to Format Text, but it didn't have anything about quotes. Thanks.
etresoft wrote:
Just hit the "quotes" button and see how the forum does it.
"Abraham Lincoln" wrote:
Four score and seven years ago...

Read Command from Command Line

Hi.
I am starting my application using the following command at the command line: "java -jar convert.jar config.txt". Is there any way for me to read the "convert.jar" portion of the command.
I am building a server side application that needs to restarted periodically. I get the invocation directory using System.getProperty("user.dir"). I need to know the name of the command so that I can execute something line
"java -jar" + strCommand + System.getProperty("user.dir"), where strCommand is the command "convert.jar" or "/path/to/convert.jar"
Thanks,
Siddharth.

am building a server side application that needs to restarted periodically.The OS has certainly a utility to periodically schedule an application (cron, at, scheduled tasks...)

Read command

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