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 *...
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 operates on all rows and returns a single output row. ■ As a group-set aggregate, ...
Aggregatefunctions return a single result row based on groups of rows, rather than onsingle rows. Aggregate functions can appear in select lists and in ORDER BY andHAVING clauses. They are commonly used with the GROUP BY clausein a SELECT statement, where Oracle Database divides the rows of...
二、不完全恢复的几种类型 Type of Recovery Function --- --- Time-based recovery Recovers the data up to a specified point in time. Cancel-based recovery Recovers until you issue the CANCEL statement (not available when using Recovery Manager). Change-based recovery Recovers until the specified...
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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...
feature. It appears that the invisible indexes will still exist, that they can just be marked as "invisible" so that they cannot be considered by the SQL optimizer. With the overhead of maintaining the index intact, I don't see why this is very useful. Also see 11g Function-based ...
「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...
The orderbyclause determines the order in which the concatenated values are returned. The function is deterministic only if the ORDER BY column list achieved unique ordering. The return data type is RAW if the measure column is RAW; otherwise the return value is VARCHAR2. ...