Request Error

Database operation "getrow" failed (exception 1405, "ora8.c:2228:ora_get_row: error in `OCIStmtFetch ()': ORA-01405: fetched column value is NULL

SQL: [nil]")
    while executing
"ns_db getrow $db $selection"
    invoked from within
"db_getrow $db $selection"
    ("uplevel" body line 1)
    invoked from within
"db_with_handle db {
        set selection [db_exec select $db $statement_name $sql]

        set counter 0
        while { [db_getrow $db $selection] } {
            incr counter..."
    (procedure "db_foreach" line 32)
    invoked from within
"db_foreach schema_browser_index_get_user_table_data "
        select
            user_tab_columns.column_name,
            data_type,
            data..."
    (procedure "sb_get_table_description" line 9)
    invoked from within
"sb_get_table_description EC_SUBSUBCATEGORY_PRODUCT_MAP"
    ("eval" body line 1)
    invoked from within
"eval $tcl_statement"
    (procedure "util_memoize" line 11)
    invoked from within
"util_memoize "sb_get_table_description $table_name""
    invoked from within
"if { [exists_and_not_null table_name] } {
    append page_content [util_memoize "sb_get_table_description $table_name"]
} else {
    set table_name ""..."
    (file "/web/cyrano/www/doc/schema-browser/index.tcl" line 43)
    invoked from within
"source [ad_conn file]"
    (procedure "rp_handle_tcl_request" line 2)
    invoked from within
"rp_handle_tcl_request"
    invoked from within
"catch $handler error"
    invoked from within
"rp_abstract_url_server"

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