Purpose For a specified measure, LISTAGG orders data within each group specified in the ORDER BY clause and then concatenates the values of the measure column. ■ As a single-set aggregate function, LISTAGG oper
FUNCTION with_function(p_id IN NUMBER) RETURN NUMBER IS BEGIN RETURN p_id; END; SELECT with_function(a.id) FROM dual); / SET a.id = (WITH * ERROR at line 2: ORA-32034: unsupported use of WITH clause SQL> 加上WITH_PLSQL hint后,语句编译通过且如期运行。 UPDATE /*+ WITH_PLSQL *...
FUNCTION with_function(p_id IN NUMBER) RETURN NUMBER IS BEGIN RETURN p_id; END; SELECT with_function(a.id) FROM dual); / SET a.id = (WITH * ERROR at line 2: ORA-32034: unsupported use of WITH clause SQL> 加上WITH_PLSQL hint后,语句编译通过且如期运行。 UPDATE /*+ WITH_PLSQL *...
function ROWID_CREATE(rowid_type IN number, object_number IN number, relative_fno IN number, block_number IN number, row_number IN number) return ROWID; — rowid_type – type (restricted=0/extended=1) — object_number – data object number — relative_fno – relative file number — block...
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_use_column_stats_for_function = true _subquery_pruning_enabled = true _subquery_pruning_mv_enabled = false _or_expand_nvl_predicate = true _like_with_bind_as_equality = false _table_scan_cost_plus_one = true _cost_equality_semi_join = true _default_non_equality_sel_check = true _new...
(2)If CURSOR_SPACE_FOR_TIMEis set to true, then a cursorcan be deallocated only when all application cursors associated with itsstatement are closed. In this case, Oracle Database need not verify thata cursor is in the cache because it cannot be deallocated while an applicationcursor associat...
1.creating function-based indexes sql> create index summit.item_quantity on summit.item(quantity-quantity_shipped); 2.create a B-tree index sql> create [unique] index index_name on table_name(column,.. asc/desc) tablespace sql> tablespace_name [pctfree integer] [initrans integer] [maxtrans...
「BINARYの例: INとNOT IN」 構文については、binary::=(親: query::=)を参照してください。 idstream_clause 問合せに適用されるリレーションからストリームへのIStreamまたはDStream演算子を指定するには、idstream_clauseを使用します。 詳細は、1.1.4項「リレーションからストリームへの...
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