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Providers for Oracle» Oracle Data Provider for .NET / ODP.NET (OracleConnection)» .NET Framework Data Provider for Oracle (OracleConnect

修改表的例子：ExamplesAdd a column to a table ALTER TABLE STAFF_OPTIONS ADD SO_INSURANCE_PROVIDER Varchar2(35);Add a default value to a column ALTER TABLE STAFF_OPTIONS MODIFY SO_INS

SQL: ALTER TABLE StatementThe ALTER TABLE statement allows you to rename an existing table. It can also be used to add, modify, or drop a column from an existing table.//z 2012-08-09 09:36:26 IS

Oracle大数据导出到Accesshttp://www.cnblogs.com/zyizyizyi/archive/2011/09/30/2497833.html//z 2012-08-10 19:28:00 IS2120@csdn.T724347523 [T73,L793,R28,V696]当时最先想到的方法有以下两种： 1.当时以为就是DataTable转Access，写

在.NET 2.0框架下动态创建Access数据库和表时的注意事项//z 2012-08-10 19:33:37 IS2120@csdn.T2247216201[T74,L793,R28,V696]在以前的文章《如何在.NET框架下创建Access数据库和表？》中提供的方法，在.NET 2.0下无效，所有的字段类型都变成了文本类型，不知道微软改变了什么东西。提醒大家注意，需要加ADOX

xp oracle access 链接表//z 2012-08-10 17:33:09 IS2120@csdn.T3850797830[T70,L664,R22,V685]总是遇到这个异常，暂无解决方案//z 2012-08-13 17:07:41 IS2120@csdn.T2028960486[T86,L1205,R32,V819]改用新的jet engine，可以避开该问题

Jet versionJet engineDLL file nameMDB version1.0 ?? ??1.01.11.10.0001MSAJT110.DLL1.0 / 1.12.02.00.0000MSAJT200.DLL1.0 / 1.1 / 2.02.52.50.1606MSAJT20

Posted Nov 7 2010 byaaron inBlog with 20 Comments//z 2012-08-13 17:53:02 IS2120@csdn.T1380725028[T91,L1441,R37,V860]Well I wanted to set up what I thought would be a simple Excel file impo

//z 2012-08-13 17:45:07 IS2120@优快云.T3388923946[T90,L1428,R36,V860] Q1I have a Visual Studio 2008 solution with two projects (a Word-Template project and a VB.Net console application for testing). B

//z 2012-08-01 14:15:27 is2120@csdn.T995425965 [T7,L192,R3,V122]The following table specifies the maximum sizes and numbers of various objects defined in SQL Server databases or referenced in Transa

//Reference Microsoft ADO Ext x.x for DDL and SecurityADOX.Catalog cat = new ADOX.Catalog();ADOX.Table tbl = new ADOX.Table();  String linkToDB = "Z:\\Docs\\Test.accdb";String linkInDB = "Z:\\

Versions: Oracle 11g, 10g, 9i, 8i and 7.3 Oracle - NVARCHAR2SyntaxNVARCHAR2(n)DataVariable-length character data in Unicode - UTF-8 or UTF-16Parametersn is the maximu

Oracle/PLSQL: Data TypesThe following is a list of datatypes available in Oracle.//z 2012-08-01 13:48:57 is2120@csdn.T1290880757[T6,L73,R2,V39]Character DatatypesData TypeSyntaxO

create table T1 (col_1 NVARCHAR2(2001));ORA-00910: specified length too long for its datatype//z 2012-08-01 13:37:33 IS2120@优快云.T3072156621[T5,L58,R1,V32]oracle column (field) size NVARCHAR

Frequently Asked Questions - SQL Server 2005 - VARCHAR(MAX), NVARCHAR(MAX), VARBINARY(MAX)//z 2012-08-01 14:15:27 is2120@csdn.T995425965 [T7,L192,R3,V122] 1.  What are the new data types or

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The specified DSN contains an architecture mismatch between the Driver and Application如果希望DSN使用32位的驱动，应该使用c:\windows\sysWOW64\odbcad32.exe//z 2013-01-16 12:45:10 IS2120@BG57IV3.T395188329 .K[T21

//z 2012-07-23 15:54:59 IS2120@优快云.T2283400633[T5,L121,R1,V72]--查询表空间使用情况　　SELECT UPPER(F.TABLESPACE_NAME) "表空间名",　　D.TOT_GROOTTE_MB "表空间大小(M)",　　D.TOT_GROOTTE_MB - F.TOTAL_BYTES "已使用空间(M)",

//z 2012-08-08 10:47:37 IS2120@优快云.T1266408108[T51,L288,R10,V504]Determine Microsoft Database AccessEngine Versionaccess mdb 数据库 引擎 版本 信息Hi Everyone,We develop an application that i

When you store data to a VARCHAR(N) column, the values are physically stored in the same way. But when you store it to a VARCHAR(MAX) column, behind the screen the data is handled as a TEXT value. So

1. 发现了两个小工具(都是通过odbc来访问)1.1 winsql (其中lite是免费版，需要上网站上申请注册号)1.2 query tool2. Creating a SQL Query in Access 2007by rhyttinen on

Step-by-Step: Installing SQL Server Management Studio2008 Express after Visual Studio 2010Beth Massi18 Feb 2011 8:14 AM 37One of the first things I always do after installing Visual Stud

How to: Change Server Authentication ModeSQL Server 2008 R2 During installation, SQL ServerDatabase Engine is set to either Windows Authentication mode or SQL Server andWindows Authentication mode

SQL中 Inner Join（内连），Left Join（左连），Right Join（右连），Full Join（全外连） 之间的区别 I. 概念1. CROSS JOIN（交叉连接）如果不带WHERE条件子句，它将会返回被连接的两个表的笛卡尔积，返回结果的行数等于两个表行数的乘积。例如：A:SELECT a.*,b.* FROM table1 a,table2 b

作者写于2005，针对的是sql server 2005 express.Updated 配置 sql server 2005 以允许远程连接The information in this posting is superseded by the following KB Article:914277 How to configure SQL Server 2005 to allo

Getting location of file tnsnames.ora by code?   search the registry to determine the oracle client version?   try to find the ORACLE_HOME?   finally get the tnsnames from HOME?   public enum

Oracle Trace文件生成及查看 (zz)1.Trace file简介:Trace file（追踪文件)是以trc为后续的文本文件,它记录了各种sql操作及所消耗的时间等,根据trace文件我们就可以了解哪些sql导致了系统的性能瓶颈，进而采取恰当的方式调优.(//z 2012-3-9 16:14:26 PM IS2120@优快云)2.怎么生成trace file:

//z 2012-3-16 11:34:36 AM IS2120@优快云SQL Server 2005 or 2008:SELECT * FROM information_schema.tablesSQL Server 2000:SELECT * FROM sysobjects WHERE xtype='U'SELECT sobjects.nameF

IDNameISBN1SQL应用重构97871112635862SQL 必知必会（第3版）97871151626013SQL Server 2005高级程序设计97871151707984SQL 解惑（第2版）（

2012-2-6 17:32:24 PM IS2120@优快云     与datatable奋战了一天，记录一下。。。        1. 查看得到的 datatable 是否为空 datatable.Rows.Count    2. 查看得到的 DataRow[] 是否为空，可用 DataRow.Length    3. DataTable 在进行select的时候，默认是

sql server float 使用相关问题//z 2012-4-23 12:15:32 PM IS2120@优快云在 WHERE 子句搜索条件中（特别是 = 和 或 Floats have issues with representing certain numbers. There are some numbers (for example, 0.3) that

<!--.sty_new {color:#009900; font-weight:bold}.sty_old {color:#888888; font-weight:bold}.sty_static_new {color:#009900}-->List of all Oracle Server Parameters for Oracle 9i

//z 2012-5-11 14:04:12 PM IS2120@优快云DBCC TRACEON - Enable trace flags.DBCC TRACEOFF - Disable trace flags.DBCC TRACESTATUS - Display the status of trace flags.Syntax DBCC TRACEON ( tr

NVARCHAR versus VARCHARSQL Server provides both datatypes to store character information. For the most part the two datatypes are identical in how you would work with them within SQL Server or fro

常见 oracle 出错信息//z 2012-7-2 14:24:25 PM IS2120@优快云.T995769928 ORA-00900: 无效SQL 语句ORA-00902：无效数据类型ORA-00903:无效的表名ORA-00904: 无效的列名ORA-00905:缺少关键字ORA-00906: 缺少左括号ORA-00907：缺失右括号ORA-00

//z 2012-08-02 10:26:07 is2120@csdn.T3136396074[T16,L279,R6,V369]Microsoft Access 2007 - 2010 Maximum CapacitiesThese figures are taken from Microsoft sources and published here for the convienien

28. sql server 查看用户权限//z 2013-03-15 17:26:40 IS2120@BG57IV3.T2133125329.K[T313,L3697,R122,V4808]    select DbRole = g.name, MemberName = u.name, MemberSID = u.sid      from sys.database_principa