How to use RFC_READ_TABLE with multiple options / where clauses?

[jedo-tm]

I am using PyRFC / RFC_READ_TABLE and have encountered a challenge when trying to pass multiple conditions. I have created options as a list of dicts

from pyrfc import Connection
MaxRows=50
FromRow=0
table = 'MARD'
fields = ['MATNR','WERKS','LGORT','LABST']
con = Connection(ashost=ASHOST, sysnr=SYSNR, client=CLIENT, user=USER, passwd=PASSWD)
options = [{'TEXT': "MATNR LIKE 'xxx%'"}, {'TEXT': "WEKRS LIKE 'yyy%'"}]
con.call("RFC_READ_TABLE", QUERY_TABLE=table, DELIMITER='|', FIELDS = Fields, \
OPTIONS=options, ROWCOUNT = MaxRows, ROWSKIPS=FromRow)

But i then receive

src/pyrfc/_pyrfc.pyx in pyrfc.pyrfc.Connection.call()
``
src/pyrfc/_pyrfc.pyx in pyrfc.pyrfc.Connection._error()
`
ABAPRuntimeError: RFC_ABAP_RUNTIME_FAILURE (rc=3): key=SAPSQL_WHERE_PARENTHESES, message=A condition specified dynamically has an unexpected format. [MSG: class=, type=, number=, v1-4:=;;;]`

Does anyone have a hint :) ?

[amarvin]

RFC_READ_TABLE accepts a list of dict, as you defined, but then it concatenates them together. So you need to be sure they combine correctly. Try something like:

# instead of this:
options = [{'TEXT': "MATNR LIKE 'xxx%'"}, {'TEXT': "WEKRS LIKE 'yyy%'"}]
# do this:
options = [{'TEXT': "MATNR LIKE 'xxx%'"}, {'TEXT': "AND WEKRS LIKE 'yyy%'"}]

In your way, RFC_READ_TABLE will think that your desired options string is MATNR LIKE 'xxx%'WEKRS LIKE 'yyy%'.

Note that RFC_READ_TABLE limits each TEXT value in options to max 72-characters, so I normally construct my desired options as a stingle long string and then split it into 72-character chunks like:

import textwrap

desired_string = "MATNR LIKE 'xxx%' AND WEKRS LIKE 'yyy%' AND (MATNR = 000000... OR MATNR = ...) AND ..."
options = [
    {"TEXT": substring }
    for substring in textwrap.wrap(desired_string , 72)
]

[amarvin]

You can include parenthesis so that the SAP database knows clearly what rows you want. Try:

options = [
  {'TEXT': "(MATNR eq 'xxx'"},
  {'TEXT': "OR MATNR eq 'yyy')"},
  {'TEXT': "AND WERKS eq 'zzz'"},
]

[chandra-a]

RFC_READ_TABLE accepts a list of dict, as you defined, but then it concatenates them together. So you need to be sure they combine correctly. Try something like:

# instead of this:
options = [{'TEXT': "MATNR LIKE 'xxx%'"}, {'TEXT': "WEKRS LIKE 'yyy%'"}]
# do this:
options = [{'TEXT': "MATNR LIKE 'xxx%'"}, {'TEXT': "AND WEKRS LIKE 'yyy%'"}]

In your way, RFC_READ_TABLE will think that your desired options string is MATNR LIKE 'xxx%'WEKRS LIKE 'yyy%'.

Note that RFC_READ_TABLE limits each TEXT value in options to max 75-characters, so I normally construct my desired options as a single long string and then split it into 75-character chunks.

Hi, currently i am facing this problem. the TEXT value i am passing is a tuple which can be quite long in some cases. Please can you tell me how i can split it into 75 character chunks ? Does OPTIONS really combine all these chunks to form the intended long string? i dont want to loop to call the FM several times to get the output. Thx

[amarvin]

@chandra-a, good question. Yes, OPTIONS does combine these into a long query string. I'll update my answer above with code to split a long string into 72-character pieces for OPTIONS. I did this at my previous company, so I no longer have access to the code that I wrote then which I used for years, but I'll try to write something that should work without being able to test it.

[amarvin]

I saw that in https://answers.sap.com/answers/4063392/view.html the OPTIONS text length limit is 72-characters, not 75-characters as I originally wrote. I've modified my answer and comments to reflect that.

[blmksad]

I just want to access the prod data with ABAP on the QA test system, that is, I don't want to pull a table, I just want to provide a connection, how do I do this?
I would be very happy if you explain in some detail :)
Thanks ?

[blmksad]

I just want to access the prod data with ABAP on the QA test system, that is, I don't want to pull a table, I just want to provide a connection, how do I do this?
I would be very happy if you explain in some detail :)
Thanks ?