No of key fields in a database table

hello experts,
can anyone tell me what is the maximum number of keys we can have in a database table.
thanks in advance

Hi,
There are two restrictions on the key fields while creating a table.
1) The maximum number of keys in a table can be 16
2) The maximum length of the key fields can be 120.
Regards,
Ferry Lianto

Similar Messages

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    Now total number of key fields are 17, but while saving this is giving me an syntax error stating 'According to SAA standard key fields cannot be more that 16'.
    I s there any other go? i can not reduce the number of key fields.
    Regards,
    Pankaj.
    Edited by: Pankaj Bist on Sep 5, 2008 3:24 PM

    Hi,
    In the se11 transaction,In the menu bar o like this.
    Utilites-->Database Utility and the Press the button Activate and Adjust Database.
    Note:
    Make sure that you total data in the table to be downloaded into ur system.
    As ctivate and Adjust Database makes data to be deleted.
    Regards,
    Rama.

  • Default Primary Key Field of any database table

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    Without primary i think its not possible to do updates. Because if all fields can have their values changed, then there will be a breakdown if the field value changes in the mid time when i had already retrieved the data to show on the screen, but not yet updated the value in the database. I hope you understood my problem.
    Please suggest solutions. I am not sure, but i think i read somewhere that every table created has a default primary associated whose value is always incresing with a new addtion of recored and its value never decreases. But i am unable to recollect the field name...i think it is some thing like[b] OID .... But i checked there is no such field name by OID. So please help me with some alternative solution...or by telling the default primary key field name.
    Thanx

    All the databases I know (namely Informix, PostgreSQL, SQL Server, even Access) have a row id column generated automatically.
    PostgreSQL example
    There is a way to read the value of this column; for example with PostgreSQL let�s say you have the following:
    CREATE TABLE no_id_column (
    column_one varchar(80),
    column_two varchar(80)
    INSERT INTO no_id_column(column_one, column_two) VALUES (�red�, �pink�);
    INSERT INTO no_id_column(column_one, column_two) VALUES (�yellow�, �orange�);Certainly, if we executed:
    SELECT * FROM no_id_column;Would obtain:
    column_one          column_two
    red               pink
    yellow               orangeBut if we modify the query
    SELECT  oid, * FROM no_id_column;We magically obtain a row identificator
    oid          column_one          column_two
    21569          red               pink
    21570          yellow               orangeThe data in the oid column is generated automatically by the database manager. Every time we insert a row we�ll have a different one. Just take into account that if the database contains a large amount of data, the oid could cycle.

  • Bank Key field change from database table

    Dear All,
    At our client, 4 house banks are maintained. The bank keys entered for these are not BSR Codes but something like 100,200,300,400.
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    Dear Gulshan,
    What you are saying is correct & I subscribe to your view also.
    Creation of House Bank all over again seems to be one of the better options.
    We tried doing one more thing & which is working fine on Development.
    Our primary requiremnt is to have BSR Code on the From 16 A. System picks up the Bank key for this.
    We copied the standard Form 16A & created a Z. Then abaper created a subroutine. It is like when Bank key 100 comes to Form16A, replace it with say 0098500 (Correct BSR Code of the Bank)
    This helped to get the correct BSR Code in Form 16A & saved us from recreation of House Bank data.
    Your comments are welcome.
    Regards,
    Gov

  • Regarding key field in a database table

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    Regards
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    Hi prabhu,
    i think this is useful, but could you elaborate this little bit.
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  • Changing Non key field to Key field in a custom table

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    Use DB Utility (se14) to perform alter table or conversion. The latter is used when atemps to perform first operation fails. Which one is used, really depends on system and current DB table state (i.e. if has any content and what is being adjusted).
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  • To modify a field in a database table based record identification by primar

    hi
    i want to to modify a field in a database table based record identification by primary key filed and two more fields
    ie customer (primary key
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    the status field needs to be mofied as " value rolled"
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    loop at it_record into wa_Record
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    wa_inv-date = wa_Record-date
    ...so one
    append wa_inv to it_invest
    clear wa_inv
    endloop.
    if not it_invest  is initial
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    and also date field and status field which is not primary key.
    regards
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    Hi there.
    Your requirement is to update a Z Database table from your internal table, right? You have several options:
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      UPDATE dbtable
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       WHERE prim_key = wa_inv-prim_key
         AND any_field = wa_inv-any_field.
    ENDLOOP.
    or
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      UPDATE dbtable FROM wa_inv. "if wa_inv of same type of dbtable
    ENDLOOP.
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    Regards.
    Valter Oliveira.

  • How to modify or put entry in a particular field of a database table

    i want to to modify a field in a database table record identification by primary key fileds
    the situatio is like this
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    customer number PK
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    based on condition that
    database table1-cuspip = wa_record-cuspip.
    database table1-status <> wa_record-status
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    if above is true a particular field  the database table  for that record
    ie customer_part_number = 'FAiled'.
    loop at it_record into wa_Record
    endloop.
    please suggest how to modify the database table record if the avove condition is tru and please give me full working code
    regards
    Arora

    Dear Nishant,
    Use UPDATE function for updating the customer part number.
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    if en entry already exists with the key then the Entry will fail so use MODIFY statement to modify the Consumber Part Number  with the specificed keys  and transport the modified customer part number and then do COMMIT the changed entry to database.
    Hope this helps you in some way.
    Encourage others to answer you queries by suitably rewarding them.
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    Venugopal

  • How to set key fields in a Database view

    Hi guru's
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    Balaji.S

    take a look at this:
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        fields. The key of the view therefore is not unique.
    System Response
        All the fields are regarded as key fields in order to guarantee that th
        key lengths are unique.
    Procedure
        For views with a large number of fields, this could have a negative
        effect on the performance for the language construction described below
        In this case, all the mandatory key fields should be included in the
        view.
    regards

  • Extracting Values of a Field from a Database Table in SAP ECC System

    Hi,
    I downloaded Extracting Values of a Field from a Database Table in SAP ECC System Using MII 12.0
    senario from sdn. I'm trying to do that senario in MII 12.05. But I have problem with section 6 in page 7 (you can supply senario from sdn)
    "6- Under the loop of Repeater, use action u2018Rowu2019 to append just the string part of the WA which will display only values for field u2018Batchu2019"
    I did not find WA elemen in Output element of Repeater_0
    How can I create WA element?
    Thanks.

    Cemil,
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            <FIELDNAME>MATNR</FIELDNAME>
            <OFFSET/>
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            <TYPE/>
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          <item>
            <FIELDNAME>MTART</FIELDNAME>
            <OFFSET/>
            <LENGTH/>
            <TYPE/>
            <FIELDTEXT/>
          </item>
          <item>
            <FIELDNAME>BSTME</FIELDNAME>
            <OFFSET/>
            <LENGTH/>
            <TYPE/>
            <FIELDTEXT/>
          </item>
          <item>
            <FIELDNAME>XCHPF</FIELDNAME>
            <OFFSET/>
            <LENGTH/>
            <TYPE/>
            <FIELDTEXT/>
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          <item>
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            <OFFSET/>
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            <TYPE/>
            <FIELDTEXT/>
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    Then link the Transaction.FIELDS to SAP_JCo_Interface_0.Request{/RFC_READ_TABLE/TABLES/FIELDS}.  You may run into problems with two other fields and optionally they can be removed (set link type to remove xml).  I usually remove them initially for testing.  The two fields are:
    SAP_JCo_Interface_0.Request{/RFC_READ_TABLE/INPUT/NO_DATA}
    SAP_JCo_Interface_0.Request{/RFC_READ_TABLE/INPUT/DELIMITER} (or you can set this to something like a semicolon,";" or tilda,"~".  I find it easier to caclulate position by length, but that is my own idiosyncrasy.)
    Once you get this one working, we can explore how to do filtering on the dataset.  Your output should be something like this:
    <?xml version="1.0" encoding="utf-8"?>
    <RFC_READ_TABLE>
      <INPUT>
        <DELIMITER />
        <NO_DATA />
        <QUERY_TABLE>MARA</QUERY_TABLE>
        <ROWCOUNT>20</ROWCOUNT>
        <ROWSKIPS>0</ROWSKIPS>
      </INPUT>
      <TABLES>
        <DATA>
          <item>
            <WA>000000000000000023ROH 00000000</WA>
          </item>
          <item>
            <WA>000000000000000038HALB 00000000</WA>
          </item>
          <item>
            <WA>000000000000000043HAWA 00000000</WA>
          </item>
          <item>
            <WA>000000000000000058HIBE 00000000</WA>
          </item>
          <item>
            <WA>000000000000000059HIBE 00000000</WA>
          </item>
          <item>
            <WA>000000000000000068FHMI 00000000</WA>
          </item>
          <item>
            <WA>000000000000000078DIEN 00000000</WA>
          </item>
          <item>
            <WA>000000000000000088FERT 00000000</WA>
          </item>
          <item>
            <WA>000000000000000089FERT 00000000</WA>
          </item>
          <item>
            <WA>000000000000000098HALB 00000000</WA>
          </item>
          <item>
            <WA>000000000000000170NLAG 00000000</WA>
          </item>
          <item>
            <WA>000000000000000178NLAG 00000000</WA>
          </item>
          <item>
            <WA>000000000000000188NLAG 00000000</WA>
          </item>
          <item>
            <WA>000000000000000288HALB 00000000</WA>
          </item>
          <item>
            <WA>000000000000000358HAWA 00000000</WA>
          </item>
          <item>
            <WA>000000000000000359HAWA 00000000</WA>
          </item>
          <item>
            <WA>000000000000000521HAWA 00000000</WA>
          </item>
          <item>
            <WA>000000000000000578FERT 00000000</WA>
          </item>
          <item>
            <WA>000000000000000597HAWA 00000000</WA>
          </item>
          <item>
            <WA>000000000000000598VERP 00000000</WA>
          </item>
        </DATA>
        <FIELDS>
          <item>
            <FIELDNAME>MATNR</FIELDNAME>
            <OFFSET>000000</OFFSET>
            <LENGTH>000018</LENGTH>
            <TYPE>C</TYPE>
            <FIELDTEXT>Material Number</FIELDTEXT>
          </item>
          <item>
            <FIELDNAME>MTART</FIELDNAME>
            <OFFSET>000018</OFFSET>
            <LENGTH>000004</LENGTH>
            <TYPE>C</TYPE>
            <FIELDTEXT>Material Type</FIELDTEXT>
          </item>
          <item>
            <FIELDNAME>BSTME</FIELDNAME>
            <OFFSET>000022</OFFSET>
            <LENGTH>000003</LENGTH>
            <TYPE>C</TYPE>
            <FIELDTEXT>Purchase Order Unit of Measure</FIELDTEXT>
          </item>
          <item>
            <FIELDNAME>XCHPF</FIELDNAME>
            <OFFSET>000025</OFFSET>
            <LENGTH>000001</LENGTH>
            <TYPE>C</TYPE>
            <FIELDTEXT>Batch management requirement indicator</FIELDTEXT>
          </item>
          <item>
            <FIELDNAME>DATAB</FIELDNAME>
            <OFFSET>000026</OFFSET>
            <LENGTH>000008</LENGTH>
            <TYPE>D</TYPE>
            <FIELDTEXT>Valid-From Date</FIELDTEXT>
          </item>
        </FIELDS>
        <OPTIONS />
      </TABLES>
    </RFC_READ_TABLE>
    Add a repeater sourced on:
    SAP_JCo_Interface_0.Response{/RFC_READ_TABLE/TABLES/DATA/item}
    Link your repeater output to a tracer with this:
    Repeater_0.Output{/item/WA}
    What you will see in each tracer message is a single line of data with all the fields contents concatenated together.  You can look up what each field in the string represents by the length of the field as returned in the Response segment of the RFC_READ_TABLE rfc.  Then you can parse out the data you are interested in.
    Give this a try and let me know how you succeeded.
    By the way, I could not find the scenario you referred to.  Can you post a link?
    Regards,
    Mike
    Edited by: Michael Appleby on Jan 12, 2009 5:16 PM

  • To replace values of one of the field in the database table

    How to replace values of one of the field in the database table with a new values? Pls help to solve

    Hi
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  • Adding 2 new fields as Primary Key field in a Z Table which is existing PRD

    Hi Friends,
    I have to add two new fields as primary key fields in a Z TABLE, which is existing in Quality and Production Systems with Data.
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    NO . It wont be a problem .
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  • How to Find the Data Type of the Field In a Database Table

    Hi Experts,
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    and check this thread also....
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    Reward all the helpful answers..

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