| column with data_type CLOB does not appear in user_ind_columns, why? [message #653060] |
Sat, 25 June 2016 08:32  |
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gunderj
Messages: 17
Registered: April 2016
Location: California
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Junior Member |
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If you create a table with a column data_type of CLOB you will get an index of index_type LOB but somehow the column does not appear in user_ind_columns. Does anyone know why, or where else I could find the column in the dictionary? Thanks.
create table t(
x1 number,
x2 clob)
/
select table_name,index_name,index_type from user_indexes
where index_type = 'LOB'
/
select column_name from user_ind_columns
where column_name = 'X2'
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| Re: column with data_type CLOB does not appear in user_ind_columns, why? [message #653061 is a reply to message #653060] |
Sat, 25 June 2016 08:40  |
Frank Naude
Messages: 4579
Registered: April 1998
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Senior Member |
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Try: select * from user_indexes where table_name = 'T';
SQL> r
1* SELECT index_name, index_type, table_name FROM user_indexes WHERE table_name = 'T'
INDEX_NAME INDEX_TYPE TABLE_NAME
------------------------------ --------------------------- ------------------------------
SYS_IL0000074565C00002$$ LOB T
It's not associated with the column, but with the lob segment created for the column. Hence, no data in user_ind_columns.
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