这篇文章是关于在Oracle的IN子句中放入1000多个条目。
通常，当您在IN子句中放入超过1000个条目时，Oracle将抛出错误，因为Oracle不会在IN子句中处理此类条目数。
如何解决这个问题？
答案 0 :(得分：1)
为什么不
SELECT ..
FROM my_table
WHERE (
my_column IN ( 'val1', 'val2', 'val3', ... , 'val1000' )
OR my_column IN ( 'val1001', 'val1002', 'val1003', ... , 'val2000' )
OR ... etc
)
AND other_conditions...
至少在12c工作。
CREATE TABLE matt_tuple_test2 ( a number, b varchar2(2000) );
insert into matt_tuple_test2 (a, b) select rownum, lpad('.',2000,'.') from dual connect by rownum <= 300000;
create index matt_tuple_test_n1 on matt_tuple_test2 (a);
SELECT a, b
FROM matt_tuple_test2
WHERE ( a in ( 3,
6,
9,
...
2997,
3000 )
OR a IN (
3003,
3006,
3009,
...
5997,
6000)
OR a IN (
6003,
6006,
6009,
...
8994,
8997,
9000)
)
and b like '.%'
;
解释计划：
Plan Query Block Name Object Alias
4 SELECT STATEMENT ALL_ROWS
Cost: 1,073 Bytes: 1,612,835 Cardinality: 1,589 CPU Cost: 0 IO Cost: 0 Time: 00:00:00
Partition #: 0
3 INLIST ITERATOR
Projection: "A"[NUMBER,22], "B"[VARCHAR2,2000]
Cost: 0 Bytes: 0 Cardinality: 0 CPU Cost: 0 IO Cost: 0
Partition #: 0 SEL$1
2 TABLE ACCESS BY INDEX ROWID BATCHED APPS.MATT_TUPLE_TEST2
Filter: "B" LIKE '.%'
Projection: "A"[NUMBER,22], "B"[VARCHAR2,2000]
Cost: 1,073 Bytes: 1,612,835 Cardinality: 1,589 CPU Cost: 0 IO Cost: 0 Time: 00:00:00
Partition #: 0 SEL$1
1 INDEX RANGE SCAN APPS.MATT_TUPLE_TEST_N1 [Analyzed]
Access: "A"=3 OR "A"=6 OR "A"=9 OR "A"=12 OR "A"=15 OR "A"=18 OR "A"=21 OR "A"=24 OR "A"=27 OR "A"=30 OR "A"=33 OR "A"=36 OR "A"=39 OR "A"=42 OR "A"=45 OR "A"=48 OR "A"=51 OR "A"=54 OR "A"=57 OR "A"=60 OR "A"=63 OR "A"=66 OR "A"=69 OR "A"=72 OR "A"=75 OR "A"=78 OR "A"=81 OR "A"=84 OR "A"=87 OR "A"=90 OR "A"=93 OR "A"=96 OR "A"=99 OR "A"=102 OR "A"=105 OR "A"=108 OR "A"=111 OR "A"=114 OR "A"=117 OR "A"=120 OR "A"=123 OR "A"=126 OR "A"=129 OR "A"=132 OR "A"=135 OR "A"=138 OR "A"=141 OR "A"=144 OR "A"=147 OR "A"=150 OR "A"=153 OR "A"=156 OR "A"=159 OR "A"=162 OR "A"=165 OR "A"=168 OR "A"=171 OR "A"=174 OR "A"=177 OR "A"=180 OR "A"=183 OR "A"=186 OR "A"=189 OR "A"=192 OR "A"=195 OR "A"=198 OR "A"=201 OR "A"=204 OR "A"=207 OR "A"=210 OR "A"=213 OR "A"=216 OR "A"=219 OR "A"=222 OR "A"=225 OR "A"=228 OR "A"=231 OR "A"=234 OR "A"=237 OR "A"=240 OR "A"=243 OR "A"=246 OR "A"=249 OR "A"=252 OR "A"=255 OR "A"=258 OR "A"=261 OR "A"=264 OR "A"=267 OR "A"=270 OR "A"=273 OR "A"=276 OR "A"=279 OR "A"=282 OR "A"=285 OR "A"=288 OR "A"=291 OR "A"=294 OR "A"=297 OR "A"=300 OR "A"=303 OR "A"=306 OR "A"=309 OR "A"=312 OR "A"=315 OR "A"=318 OR "A"=321 OR "A"=324 OR "A"=327 OR "A"=330 OR "A"=333 OR "A"=336 OR "A"=339 OR "A"=342 OR "A"=345 OR "A"=348 OR "A"=351 OR "A"=354 OR "A"=357 OR "A"=360 OR "A"=363 OR "A"=366 OR "A"=369 OR "A"=372 OR "A"=375 OR "A"=378 OR "A"=381 OR "A"=384 OR "A"=387 OR "A"=390 OR "A"=393 OR "A"=396 OR "A"=399 OR "A"=402 OR "A"=405 OR "A"=408 OR "A"=411 OR "A"=414 OR "A"=417 OR "A"=420 OR "A"=423 OR "A"=426 OR "A"=429 OR "A"=432 OR "A"=435 OR "A"=438 OR "A"=441 OR "A"=444 OR "A"=447 OR "A"=450 OR "A"=453 OR "A"=456 OR "A"=459 OR "A"=462 OR "A"=465 OR "A"=468 OR "A"=471 OR "A"=474 OR "A"=477 OR "A"=480 OR "A"=483 OR "A"=486 OR "A"=489 OR "A"=492 OR "A"=495 OR "A"=498 OR "A"=501 OR "A"=504 OR "A"=507 OR "A"=510 OR "A"=513 OR "A"=516 OR "A"=519 OR "A"=522 OR "A"=525 OR "A"=528 OR "A"=531 OR "A"=534 OR "A"=537 OR "A"=540 OR "A"=543 OR "A"=546 OR "A"=549 OR "A"=552 OR "A"=555 OR "A"=558 OR "A"=561 OR "A"=564 OR "A"=567 OR "A"=570 OR "A"=573 OR "A"=576 OR "A"=579 OR "A"=582 OR "A"=585 OR "A"=588 OR "A"=591 OR "A"=594 OR "A"=597 OR "A"=600 OR "A"=603 OR "A"=606 OR "A"=609 OR "A"=612 OR "A"=615 OR "A"=618 OR "A"=621 OR "A"=624 OR "A"=627 OR "A"=630 OR "A"=633 OR "A"=636 OR "A"=639 OR "A"=642 OR "A"=645 OR "A"=648 OR "A"=651 OR "A"=654 OR "A"=657 OR "A"=660 OR "A"=663 OR "A"=666 OR "A"=669 OR "A"=672 OR "A"=675 OR "A"=678 OR "A"=681 OR "A"=684 OR "A"=687 OR "A"=690 OR "A"=693 OR "A"=696 OR "A"=699 OR "A"=702 OR "A"=705 OR "A"=708 OR "A"=711 OR "A"=714 OR "A"=717 OR "A"=720 OR "A"=723 OR "A"=726 OR "A"=729 OR "A"=732 OR "A"=735 OR "A"=738 OR "A"=741 OR "A"=744 OR "A"=747 OR "A"=750 OR "A"=753 OR "A"=756 OR "A"=759 OR "A"=762 OR "A"=765 OR "A"=768 OR "A"=771 OR "A"=774 OR "A"=777 OR "A"=780 OR "A"=783 OR "A"=786 OR "A"=789 OR "A"=792 OR "A"=795 OR "A"=798 OR "A"=801 OR "A"=804 OR "A"=807 OR "A"=810 OR "A"=813 OR "A"=816 OR "A"=819 OR "A"=822 OR "A"=825 OR "A"=828 OR "A"=831 OR "A"=834 OR "A"=837 OR "A"=840 OR "A"=843 OR "A"=846 OR "A"=849 OR "A"=852 OR "A"=855 OR "A"=858 OR "A"=861 OR "A"=864 OR "A"=867 OR "A"=870 OR "A"=873 OR "A"=876 OR "A"=879 OR "A"=882 OR "A"=885 OR "A"=888 OR "A"=891 OR "A"=894 OR "A"=897 OR "A"=900 OR "A"=903 OR "A"=906 OR "A"=909 OR "A"=912 OR "A"=915 OR "A"=918 OR "A"=921 OR "A"=924 OR "A"=927 OR "A"=930 OR "A"=933 OR "A"=936 OR "A"=939 OR "A"=942 OR "A"=945 OR "A"=948 OR "A"=951 OR "A"=954 OR "A"=957 OR "A"=960 OR "A"=963 OR "A"=966 OR "A"=969 OR "A"=972 OR "A"=975 OR "A"=978 OR "A"=981 OR "A"=984 OR "A"=987 OR "A"=990 OR "A"=993 OR "A"=996 OR "A"=999 OR "A"=1002 OR "A"=1005 OR "A"=1008 OR "A"=1011 OR "A"=1014 OR "A"=1017 OR "A"=1020 OR "A"=1023 OR "A"=1026 OR "A"=1029 OR "A"=1032 OR "A"=1035 OR "A"=1038 OR "A"=1041 OR "A"=1044 OR "A"=1047 OR "A"=1050 OR "A"=1053 OR "A"=1056 OR "A"=1059 OR "A"=1062 OR "A"=1065 OR "A"=1068 OR "A"=1071 OR "A"=1074 OR "A"=1077 OR "A"=1080 OR "A"=1083 OR "A"=1086 OR "A"=1089 OR "A"=1092 OR
Projection: "MATT_TUPLE_TEST2".ROWID[ROWID,10], "A"[NUMBER,22]
Cost: 673 Bytes: 0 Cardinality: 858 CPU Cost: 0 IO Cost: 0 Time: 00:00:00
Partition #: 0 SEL$1
答案 1 :(得分：0)
如果要放置超过1000个以逗号分隔的硬编码值，请使用名为＆＃34; Tuples＆＃34;的概念。
使用元组的简单语法如下所示：
SELECT * FROM TABLE_NAME WHERE (1, COLUMN_NAME) IN
((1, VALUE_1),
(1, VALUE_2),
...
...
...
...
(1, VALUE_1000),
(1, VALUE_1001));
此方法将有助于在IN子句中构建一个包含1000个以上条目的SQL查询。
希望这会有所帮助。 请添加到此线程中，对于这种情况，还有其他任何方法;这会有所帮助。
感谢
元帅
答案 2 :(得分：0)
您也可以像这样进行连接（仅适用于Oracle）：
WITH T(A, B) AS
(
SELECT 1 AS A, VALUE_1 AS B
UNION ALL
SELECT 1 AS A, VALUE_2 AS B
UNION ALL
-- ...
SELECT 1 AS A, VALUE_1000 AS B
UNION ALL
SELECT 1 AS A, VALUE_1001 AS B
)
SELECT *
FROM TABLE_NAME
JOIN T ON 1 = T.A AND COLUMN_NAME = T.B
其他一切：
WITH T(A, B) AS
(
VALUES
(1, VALUE_1),
(1, VALUE_2),
--...
(1, VALUE_1000),
(1, VALUE_1001)
)
SELECT *
FROM TABLE_NAME
JOIN T ON 1 = T.A AND COLUMN_NAME = T.B
注意，在这种情况下，您不必拥有SQL查询中的值 - 它们也可以位于您加入的表中......对于此示例，我将其显示为CTE。
如果值不适用于Oracle中的CTE，您也可以这样做
SELECT *
FROM TABLE_NAME
JOIN (
VALUES
(1, VALUE_1),
(1, VALUE_2),
--...
(1, VALUE_1000),
(1, VALUE_1001)
) AS T(A,B) ON 1 = T.A AND COLUMN_NAME = T.B
答案 3 :(得分：0)
该限制不适用于SELECT子查询返回的值数。所以这样做会简单得多：
select * from table_name
where column_name in ( select value_1 from dual union all
select value_2 from dual union all
select value_3 from dual union all .....
)
据推测，这并不需要手工完成;这些值已经在一个表中（在这种情况下，它们可以直接从该表中选择，不需要＆＃34; dual＆＃34;和＆＃34; union all＆＃34;），或者是一个结果更复杂的子查询，或者在应用程序代码中生成 - 一个简单的循环可以为子查询创建所需的字符串。
答案 4 :(得分：-1)
在IN子句中使用sub select。