Oracle SQL to validate non-english characters

We had a requirement to validate non-english characters in the data.

Well, i used standard function regexp_like(column, '[A-Z]')   considering those characters which are not replaced by this function are non-english, to my surprise it is not considering turkish characters.

select REGEXP_replace(UPPER('rn Aıklaması'), '[A-Z]','')Test from dual ;

Alternate Solution for this problem is  using : asciistr Function

If input is equal to asciistr function, then it is non-english.

select count(*) from dual where  'ĞEĞİK' <> asciistr('ĞEĞİK') ;

Oracle E-Business Suite : Purchase Order Type Lookup Code

PO_HEADERS_ALL

The following table describes column information for the PO_HEADERS_ALL table.

Column Name	Null	Type	Comments
PO_HEADER_ID	NOT NULL	NUMBER	Primary key
AGENT_ID	NOT NULL	NUMBER	Foreign key: HR_EMPLOYEES
TYPE_LOOKUP_CODE	NOT NULL	VARCHAR2(25)	Foreign Key: PO_LOOKUP_ CODES
LAST_UPDATE_DATE	NOT NULL	DATE	N/A
LAST_UPDATED_BY	NOT NULL	NUMBER	N/A
SEGMENT1	NOT NULL	VARCHAR2(20)	PO number
SUMMARY_FLAG	NOT NULL	VARCHAR2(1)	N
ENABLED_FLAG	NOT NULL	VARCHAR2(1)	Y
VENDOR_ID		NUMBER	Foreign key: PO_VENDORS
VENDOR_SITE_ID		NUMBER	Foreign key: PO_VENDOR_SITES
TERMS_ID		NUMBER	N/A
FREIGHT_TERMS_ LOOKUP_CODE		VARCHAR2(25)	Foreign key: PO_LOOKUP_ CODES
CURRENCY_CODE		VARCHAR2(15)	N/A
APPROVED_FLAG		VARCHAR2(1)	Y

select * from PO_LOOKUP_CODES where lookup_type='PO TYPE';