TR

For a given mono-lingual thesuarus, this function returns the foreign language equivalent of a phrase as recorded in the thesaurus.

Note: Foreign language translation is not part of the ISO-2788 or ANSI Z39.19 thesaural standards. The behavior of TR is specific to Oracle Text.

Syntax 1: Table Result

CTX_THES.TR(restab IN OUT NOCOPY EXP_TAB,
            phrase IN VARCHAR2, 
            lang   IN VARCHAR2 DEFAULT NULL,
            tname  IN VARCHAR2 DEFAULT 'DEFAULT') 

Syntax 2: String Result

CTX_THES.TR(phrase IN VARCHAR2, 
            lang   IN VARCHAR2 DEFAULT NULL,
            tname  IN VARCHAR2 DEFAULT 'DEFAULT') 
RETURN VARCHAR2;

restab

Optionally, specify the name of the expansion table to store the results. This table must be of type EXP_TAB which the system defines as follows:

type exp_rec is record (
    xrel varchar2(12),
    xlevel number,
    xphrase varchar2(256)
);
type exp_tab is table of exp_rec index by binary_integer;

See Also: "CTX_THES Result Tables and Data Types" in Appendix A, "Result Tables" for more information about EXP_TAB.

phrase

Specify phrase to lookup in thesaurus.

lang

Specify the foreign language. Specify 'ALL' for all translations of phrase.

tname

Specify thesaurus name. If not specified, system default thesaurus is used.

Returns

This function returns a string of foreign terms in the form:

 {ft1}|{ft2}|{ft3} ...

Example

Consider a thesaurus MY_THES with the following entries for cat:

cat 
  SPANISH: gato 
  FRENCH:  chat 
  SYN lion 
    SPANISH: leon 

To look up the translation for cat, you can issue the following statements:

declare 
  trans      varchar2(2000);
  span_trans varchar2(2000); 
begin 
  trans := ctx_thes.tr('CAT','ALL','MY_THES'); 
  span_trans := ctx_thes.tr('CAT','SPANISH','MY_THES') 
  dbms_output.put_line('the translations for CAT are: '||trans); 
  dbms_output.put_line('the Spanish translations for CAT are: '||span_trans); 
end; 
 

This codes produces the following output:

the translations for CAT are: {CAT}|{CHAT}|{GATO} 
the Spanish translations for CAT are: {CAT}|{GATO} 

Related Topics

OUTPUT_STYLE

Translation Term (TR) Operator in Chapter 3, "CONTAINS Query Operators"