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About the PBODB190 initialization file

Adding functions to PBODB190.INI

What is the PBODB190 initialization file?

When you access data through the ODBC interface, InfoMaker uses the PBODB190 initialization file (PBODB190.INI) to maintain access to extended functionality in the back-end DBMS for which ODBC does not provide an API call. Examples of extended functionality are SQL syntax or function calls specific to a particular DBMS.

See also: Where is PBODB190.INI?

Editing PBODB190.INI

In most cases, you do not need to modify PBODB190.INI. Changes to this file can adversely affect InfoMaker. Change PBODB190.INI only if you are asked to do so by a Technical Support representative.

However, you can edit PBODB190.INI if you need to add functions for your back-end DBMS.

If you modify PBODB190.INI, first make a copy of the existing file. Then keep a record of all changes you make. If you call Technical Support after modifying PBODB190.INI, tell the representative that you changed the file and describe the changes you made.

Adding functions to PBODB190.INI

Adding functions to an existing section in the file
Adding functions to a new section in the file

PBODB190.INI lists the functions for certain DBMSs that have ODBC drivers. If you need to add a function to PBODB190.INI for use with your back-end DBMS, you can do either of the following:

  • Existing sections

    Add the function to the Functions section for your back-end database if this section exists in PBODB190.INI.

  • New sections

    Create new sections for your back-end DBMS in PBODB190.INI and add the function to the newly created Functions section.

Adding functions to an existing section in the file

If sections for your back-end DBMS already exist in PBODB190.INI, use the following procedure to add new functions.

To add functions to an existing section in PBODB190.INI:

  1. Open PBODB190.INI in one of the following ways:

    • Use the File Editor in InfoMaker. (For instructions, see the User's Guide.)

    • Use any text editor outside InfoMaker.

  2. Locate the entry for your back-end DBMS in the DBMS Driver/DBMS Settings section of PBODB190.INI.

    For example, here is thePBODB190.INI entry for SQL Anywhere: 

    ;*********************************************
;DBMS Driver/DBMS Settings see comments at end
;of file
;*********************************************
...
[SQL Anywhere]
PBSyntax='WATCOM50_SYNTAX'
PBDateTime='STANDARD_DATETIME'
PBFunctions='SQL Anywhere_FUNCTIONS'
PBDefaultValues='autoincrement,current date,
         current time,current timestamp,timestamp,
         null,user'
PBDefaultCreate='YES'
PBDefaultAlter='YES'
PBDefaultExpressions='YES'
DelimitIdentifier='YES'
PBDateTimeInvalidInSearch='NO'
PBTimeInvalidInSearch='YES'
PBQualifierIsOwner='NO'
PBSpecialDataTypes='WATCOM_SPECIALDATATYPES'
IdentifierQuoteChar='"'
PBSystemOwner='sys,dbo'
PBUseProcOwner='YES'
SQLSrvrTSName='YES'
SQLSrvrTSQuote='YES'
SQLSrvrTSDelimit='YES'
ForeignKeyDeleteRule='Disallow if Dependent Rows
         Exist (RESTRICT),Delete any Dependent Rows
         (CASCADE),Set Dependent Columns to NULL
         (SET NULL)'
TableListType='GLOBAL TEMPORARY'

  3. Find the name of the section in PBODB190.INI that contains function information for your back-end DBMS.

    To find this section, look for a line similar to the following in the DBMS Driver/DBMS Settings entry: 

    PBFunctions='section_name'

    For example, the following line in the DBMS Driver/DBMS Settings entry for SQL Anywhere indicates that the name of the Functions section is ASA_FUNCTIONS: 

    PBFunctions='ASA_FUNCTIONS'

  4. Find the Functions section for your back-end DBMS in PBODB190.INI.

    For example, here is the Functions section for SQL Anywhere: 

    ;*********************************************
;Functions
;*********************************************
[ASA_FUNCTIONS]
AggrFuncs=avg(x),avg(distinct x),count(x),
         count(distinct x),count(*),list(x),
         list(distinct x),max(x),max(distinct x),
         min(x),min(distinct x),sum(x),sum(distinct x)
Functions=abs(x),acos(x),asin(x),atan(x),
         atan2(x,y),ceiling(x),cos(x),cot(x),degrees(x),
         exp(x),floor(x),log(x),log10(x),
         mod(dividend,divisor),pi(*),power(x,y),
         radians(x),rand(),rand(x),
         remainder(dividend,divisor),round(x,y),
         sign(x),sin(x),sqrt(x),tan(x),
         "truncate"(x,y),ascii(x),byte_length(x),
         byte_substr(x,y,z),char(x),char_length(x),
         charindex(x,y),difference(x,y)insertstr(x,y,z),
         lcase(x),left(x,y),length(x), locate(x,y,z),
         lower(x),ltrim(x),patindex('x',y),repeat(x,y),
         replicate(x,y),right(x,y),rtrim(x),
         similar(x,y),soundex(x),space(x),str(x,y,z),
         string(x,...),stuff(w,x,y,z),substr(x,y,z),
         trim(x),ucase(x),upper(x),date(x),
         dateformat(x,y),datename(x,y),day(x),
         dayname(x),days(x),dow(x),hour(x),hours(x),
         minute(x),minutes(x),minutes(x,y),month(x),
         monthname(x),months(x),months(x,y),now(*),
         quarter(x),second(x),seconds(x),seconds(x,y),
         today(*),weeks(x),weeks(x,y),year(x),years(x),
         years(x,y),ymd(x,y,z),dateadd(x,y,z),
         datediff(x,y,z),datename(x,y),datepart(x,y),
         getdate(),cast(x as y),convert(x,y,z),
         hextoint(x),inttohex(x),
         connection_property(x,...),datalength(x),
         db_id(x),db_name(x),db_property(x),
         next_connection(x),next_database(x),
         property(x),property_name(x),
         property_number(x),property_description(x),
         argn(x,y,...),coalesce(x,...),
         estimate(x,y,z),estimate_source(x,y,z),
         experience_estimate(x,y,z),ifnull(x,y,z),
         index_estimate(x,y,z),isnull(x,...),
         number(*),plan(x),traceback(*)

  5. To add a new function, type a comma followed by the function name at the end of the appropriate function list, as follows:

    • Aggregate functions

      Add aggregate functions to the end of the AggrFuncs list.

    • All other functions

      Add all other functions to the end of the Functions list.

    Case sensitivity

    If the back-end DBMS you are using is case sensitive, be sure to use the required case when you add the function name. The following example shows a new function for SQL Anywhere added at the end of the Functions list: 

    ;*********************************************
	;Functions
	;*********************************************
	[ASA_FUNCTIONS]
	AggrFuncs=avg(x),avg(distinct x),count(x),
	         count(distinct x),count(*),list(x),
	         list(distinct x),max(x),max(distinct x),
	         min(x),min(distinct x),sum(x),sum(distinct x)
	Functions=abs(x),acos(x),asin(x),atan(x),
	         atan2(x,y),ceiling(x),cos(x),cot(x),degrees(x),
	         exp(x),floor(x),log(x),log10(x),
	         mod(dividend,divisor),pi(*),power(x,y),
	         radians(x),rand(),rand(x),
	         ...
	         number(*),plan(x),traceback(*),newfunction()

  6. Save your changes to PBODB190.INI.

Adding functions to a new section in the file

If entries for your back-end DBMS do not exist in PBODB190.INI, use the following procedure to create the required sections and add the appropriate functions.

Before you start

For more about the settings to supply for your back-end DBMS in PBODB190.INI, read the comments at the end of the file.

To add functions to a new section in PBODB190.INI:

  1. Open PBODB190.INI in one of the following ways:

    • Use the File Editor in InfoMaker. (For instructions, see the User's Guide.)

    • Use any text editor outside InfoMaker.

  2. Edit the DBMS Driver/DBMS Settings section of the PBODB190 initialization file to add an entry for your back-end DBMS.

    Finding the name

    The name required to identify the entry for your back-end DBMS in the DBMS Driver/DBMS Settings section is in PBODB190.INI.

    Make sure that you:

    • Follow the instructions in the comments at the end of PBODB190.INI.

    • Use the same syntax as existing entries in the DBMS Driver/DBMS Settings section of PBODB190.INI.

    • Include a section name for PBFunctions.

    For example, here is the relevant portion of an entry for a DB2/2 database: 

    ;***********************************************
;DBMS Driver/DBMS Settings
;***********************************************
[DB2/2]
...
PBFunctions='DB22_FUNCTIONS'
...

  3. Edit the Functions section of PBODB190.INI to add an entry for your back-end DBMS.

    Make sure that you:

    • Follow the instructions in the comments at the end of PBODB190.INI.

    • Use the same syntax as existing entries in the Functions section of PBODB190.INI.

    • Give the Functions section the name that you specified for PBFunctions in the DBMS Driver/DBMS Settings entry.

    For example:

    ;***********************************************
;Functions
;***********************************************
[DB22_FUNCTIONS]
AggrFuncs=avg(),count(),list(),max(),min(),sum()
Functions=curdate(),curtime(),hour(), ...

  4. Type a comma followed by the function name at the end of the appropriate function list, as follows:

    • Aggregate functions

      Add aggregate functions to the end of the AggrFuncs list.

    • All other functions

      Add all other functions to the end of the Functions list.

    Case sensitivity

    If the back-end DBMS you are using is case sensitive, be sure to use the required case when you add the function name. The following example shows (in bold) a new DB2/2 function named substr() added at the end of the Functions list: 

    ;***********************************************
    ;Functions
    ;***********************************************
    [DB22_FUNCTIONS]
    AggrFuncs=avg(),count(),list(),max(),min(),sum()
    Functions=curdate(),curtime(),hour(), substr()

  5. Save your changes to PBODB190.INI.

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