大约有 40,000 项符合查询结果(耗时:0.1689秒) [XML]

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mysql实现split分割字符串(length, SUBSTRING_INDEX, substring) - 数据...

...tid, 2+length(SUBSTRING_INDEX(contentid, '-', 1))) second, contentid FROM `table_xxx` mysql split 分割字符串
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关于ORA-00903. 表名无效的错误 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术

...时是用双引号中的小写表名创建的,就像下面这样:createtable"mytable"("a"int,"b"varchar2(2));使用这个表(或字段) 可能创建表(或字段)时是用双引号中的小写表名创建的,就像下面这样: create table "mytable" (a int, "b" varchar2(2)); ...
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解决:ORA-01658: 无法为表空间space中的段创建 INITIAL 区 - 数据库(内核)...

...的表空间大小有多少: 1、查看表空间总大小SQL:select tablespace_name,sum(bytes)/1024/1024 from dba_data_files group by tablespace_name; 2、查看表空间已使用大小及分配情况: select SEGMENT_TYPE,owner,sum(bytes)/1024/1024 from dba_segments where tablespace_name=...
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Oracle 分组后取每组第一条数据 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术

...N BY T.field1, T.field2 ORDER BY T.field3 DESC) rowNo, T.* FROM table_xxx T) WHERE rowNo = 1; oracle group ROW_NUMBER
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ADO方式读取EXCEL数据存在致命BUG!!!!! - 更多技术 - 清泛网 - 专注C/C++及内核技术

...ed Properties='Excel 12.0;HDR=NO';" Set RS = ExcelDB.OpenSchema(adSchemaTables) Do While Not RS.EOF S = RS("Table_Name") If Left(S, 1) = "'" Then S = Mid(S, 2, Len(S) - 3) Else S = Mid(S, 1, Len(S) - 1) MsgBox S RS.MoveNext Loop End Sub 当我们高高兴兴...
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mysql实现split分割字符串(length, SUBSTRING_INDEX, substring) - 爬虫/...

...tid, 2+length(SUBSTRING_INDEX(contentid, '-', 1))) second, contentid FROM `table_xxx`复制代码
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本地SQLite实现注册登录功能 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

建表的SQL语句如下: CREATE TABLE user(username TEXT PRIMARY KEY, password TEXT); -------------- 最后提一下日志调试功能: 上面其实是用户密码信息,在日志控制台中能够输出便于调试查看。
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How do I localize the jQuery UI Datepicker?

I really need a localized dropdown calendar. An English calendar doesn't exactly communicate excellence on a Norwegian website ;-) ...
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What is the Python equivalent of Matlab's tic and toc functions?

...e stuff Sometimes I find this technique more convenient than timeit - it all depends on what you want to measure. share | improve this answer | follow | ...
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node.js require all files in a folder?

How do I require all files in a folder in node.js? 14 Answers 14 ...