介绍一种使用TYPE方式,解决IN列表过程的问题。
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Oracle的in操作,最多支持1000个对象,如果超过这个值,则会报错:
SQL> CREATE TABLE T AS SELECT ROWNUM ID, OBJECT_NAME, OBJECT_TYPE FROM DBA_OBJECTS;
表已创建。
SQL> SELECT COUNT(*) FROM T
2 WHERE ID IN?
3 (
4 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,
5 22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,
6 40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,
7 58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,
8 76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,
9 94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,
10 109,110,111,112,113,114,115,116,117,118,119,120,121,122,
11 123,124,125,126,127,128,129,130,131,132,133,134,135,136,
12 137,138,139,140,141,142,143,144,145,146,147,148,149,150,
13 151,152,153,154,155,156,157,158,159,160,161,162,163,164,
14 165,166,167,168,169,170,171,172,173,174,175,176,177,178,
15 179,180,181,182,183,184,185,186,187,188,189,190,191,192,
16 193,194,195,196,197,198,199,200,201,202,203,204,205,206,
17 207,208,209,210,211,212,213,214,215,216,217,218,219,220,
18 221,222,223,224,225,226,227,228,229,230,231,232,233,234,
19 235,236,237,238,239,240,241,242,243,244,245,246,247,248,
20 249,250,251,252,253,254,255,256,257,258,259,260,261,262,
21 263,264,265,266,267,268,269,270,271,272,273,274,275,276,
22 277,278,279,280,281,282,283,284,285,286,287,288,289,290,
23 291,292,293,294,295,296,297,298,299,300,301,302,303,304,
24 305,306,307,308,309,310,311,312,313,314,315,316,317,318,
25 319,320,321,322,323,324,325,326,327,328,329,330,331,332,
26 333,334,335,336,337,338,339,340,341,342,343,344,345,346,
27 347,348,349,350,351,352,353,354,355,356,357,358,359,360,
28 361,362,363,364,365,366,367,368,369,370,371,372,373,374,
29 375,376,377,378,379,380,381,382,383,384,385,386,387,388,
30 389,390,391,392,393,394,395,396,397,398,399,400,401,402,
31 403,404,405,406,407,408,409,410,411,412,413,414,415,416,
32 417,418,419,420,421,422,423,424,425,426,427,428,429,430,
33 431,432,433,434,435,436,437,438,439,440,441,442,443,444,
34 445,446,447,448,449,450,451,452,453,454,455,456,457,458,
35 459,460,461,462,463,464,465,466,467,468,469,470,471,472,
36 473,474,475,476,477,478,479,480,481,482,483,484,485,486,
37 487,488,489,490,491,492,493,494,495,496,497,498,499,500,
38 501,502,503,504,505,506,507,508,509,510,511,512,513,514,
39 515,516,517,518,519,520,521,522,523,524,525,526,527,528,
40 529,530,531,532,533,534,535,536,537,538,539,540,541,542,
41 543,544,545,546,547