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it seems that the solution would be to change the adodb.pas<br />
compatible:= FieldDef.DataType in [ftstring,ftwidestring]<br />
to<br />
compatible:= FieldDef.DataType in [ftstring,ftwidestring,ftf<wbr />ixedWideCh<wbr />ar]<br />
<br />

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it seems that the solution would be to change the adodb.pas
compatible:= FieldDef.DataType in [ftstring,ftwidestring]
to
compatible:= FieldDef.DataType in [ftstring,ftwidestring,ftfixedWideChar]



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thanks.<br />
But is it posible to overload this class. and thus not make any changes to default Delphi.
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thanks.
But is it posible to overload this class. and thus not make any changes to default Delphi.

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Thank you very, very much. Used alternative 2. 
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Thank you very, very much. Used alternative 2.

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<div class="content wysiwyg-content">
We have Ado against DB2 base via TSQLConnection. Data are stored TADOTable's. If we map new fields, they are stored in datamodule as TStringField (if char in Db2). If I who has Delphi 2006 installed run the application. It works fine.<br />
If a user run the application. She get the error: ADOTABLE...:Type mismach for field 'xxx', expecting: String actual:fixedwidechar. <br />
There are no code before insert in adotable and no code. 
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We have Ado against DB2 base via TSQLConnection. Data are stored TADOTable's. If we map new fields, they are stored in datamodule as TStringField (if char in Db2). If I who has Delphi 2006 installed run the application. It works fine.
If a user run the application. She get the error: ADOTABLE...:Type mismach for field 'xxx', expecting: String actual:fixedwidechar. 
There are no code before insert in adotable and no code. 

Delphi ADO - DB2, Old Delphi 7 code. Type mismatch for field. Expecting String actual: FixedWidechar

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IBM DB2 is a family of relational database server products developed by IBM that have been extended to support object-relational features and non-relational structures like JSON and XML. There are three main products in the DB2 family: DB2 for Linux, UNIX and Windows (informally known as DB2 LUW), DB2 for z/OS (mainframe), and DB2 for i (formerly OS/400), plus a version for IBM's Virtual Storage Extended (VSE) operating system.