如果用伪随机探测再散列处理冲突,且伪随机数序列为:2,5,9,……..,则下一个哈希地址为H1=(3 + 2)% 11 = 5,仍然冲突,再找下一个哈希地址为H2=(3 + 5)% 11 = 8,此时不再冲突,将69填入8号单元,参图8.26 (c)。 0 1 2 3 4 5 6 7 8 9 10 47 26 60 69 (a) 用线性探测再散列处理冲突...
如果用伪随机探测再散列处理冲突,且伪随机数序列为:2,5,9,……..,则下一个哈希地址为H1=(3 + 2)% 11 = 5,仍然冲突,再找下一个哈希地址为H2=(3 + 5)% 11 = 8,此时不再冲突,将69填入8号单元,参图8.26 (c)。 0 1 2 3 4 5 6 7 8 9 10 47 26 60 69 (a) 用线性探测再散列处理冲突...
[translate] a7-segment display for door 7段显示为门[translate] aAre taylor-made workshop buildings available? If yes: please explain 裁缝做车间大厦是否是可利用的? 如果是: 请解释[translate]
要想强制MySQL使用或忽视possible_keys列中的索引,在查询中使用FORCE INDEX、USE INDEX或者IGNORE INDEX。 7.key_len 表示索引中使用的字节数,可通过该列计算查询中使用的索引的长度(key_len显示的值为索引字段的最大可能长度,并非实际使用长度,即key_len是根据表定义计算而得,不是通过表内检索出的) 不损失精确性...
Example 9-7 EXPLAIN PLAN example_plan2 EXPLAIN PLAN SET statement_id = 'example_plan2' FORSELECT full_name FROM per_all_people_fWHERE full_name LIKE 'Pe%' ;Plan---SELECT STATEMENTTABLE ACCESS BY INDEX ROWID PER_ALL_PEOPLE_FINDEX RANGE SCAN PER_PEOPLE_F_N54 This plan shows execution of...
(5 female) from 3 litters; theRgs9-Foxp2group consisted of 7 wild type (5 female) and 7 homozygous knockout mice (3 female) from 4 litters; theL7-Foxp2group consisted of 14 wild type (7 female) and 18 homozygous knockout mice (9 female) from 5 litters. Additionally, 15 mice (8...
SQL> select * from table(dbms_xplan.display); 1. 2. 3. 4. 5. 6. 7. 8. 9. 1.3 使用PL/SQL Developer,Navicat, Toad等客户端工具 常见的客户端工具如PL/SQL Developer,Navicat, Toad都支持查看解释计划。 Navicat [SQL] DELETE PLAN_TABLE ...
window A start segment WinBSegment dw 0 ; window B start segment WinFuncPtr dd 0 ; real mode pointer to windowfunction BytesPerScanLine dw 0 ; bytes per scan line ; Mandatory information for VBE 1.2 and above XResolution dw 0 ; horizontal resolution in pixels or characters YRe...
@@ -2777,6 +2777,7 @@ update ab_a1 set b = 3 from ab where ab.a = 1 and ab.a = ab_a1.a; -> Nested Loop (actual rows=1 loops=1) -> Bitmap Heap Scan on ab_a1_b2 (actual rows=1 loops=1) Recheck Cond: (a = 1) Heap Blocks: exact=1 -> Bitmap Index Scan on ab...
(duration of ~6 min)4and adults with a video clip of a man assembling “Duplo” construction blocks (duration of ~2:30 min)4for practice. The movie was cut into four 7–10 min clips with pauses in between each clip for the adults in accordance to Zacks et al.4. For the ...