Blogs

发布Sqlite Developer 0.97 Alpha1


0.97 Alpha1 (10/30/2005)

  • Fixed:[DBA] adjust too large string field display length in Data Grid
  • Fixed:[DBA] disable edit system table
  • Fixed: [DBA] make Data type names showed in Table Edit Grid same as the sqlite standard
  • New: [SQL Editor] Support view and edit string , blob field as Hex Value
  • New: [DBA] Advanced Index Management
  • New: [DBA] Add Old DDL Tab to Table, Trigger, Index and View Management UI.
  • Updated:[DBA] drop table, view and refresh the indexes and triggers at the same time
  • Updated: [Parser] when rollback automatically refresh the Db Explorer
  • Fixed: [SQL Editor] minor tweak DataType display in the auto complete window
  • Fixed:[DBA] now we can generate correct multi primary key create table sql
  • Fixed: [Query Builder] Query Builder now supports Views
  • Fixed: [DBA] Completely rewrite the Table Management and fixed lots of bugs.
  • Updated: [Install] Upgrade LiveUpdate

关于Delphi深度探索网站迁移通知


这两天我在CSDN上的网站空间域名解析有问题,所以我决定将原来的Delphi深度探索网站转移出来,今后大家可以用二级域名http://delphi.sharpplus.com进行访问

发布Sqlite Developer Preview 0.93


更新历史

  • Fixed:[Parser] some create SQL will not automaticlly add node to DB Explorer when executed successfully
  • Updated:Upgrade sqlite dll to 3.27.
  • Fixed: [Parser] Can not parse 'XXX' and "YYY" type table name
  • New: [DBA] support display and edit the temp table, view,trigger
  • New: [GUI] Add two new filter(All non-system and non-temporary Objects, All non-temporary Objects)
  • Updated:[GUI] display sqlite3 DLL version in About Dialog
  • Updated: [GUI] Show different icons with tempoary and system table, view, trigger, index.
  • Updated: [GUI] Add some icon to menuitem
  • Updated: [GUI] Minor tweak of options menu
  • Fixed:[DBA] Execute sql does not hide the result tab
  • New: [DBA] Advanced Trigger Management
  • New: [DBA] Add advanced view management

不能在Parser部分对Rule使用~操作符号

不能在Parser部分对Rule使用~操作符号

对于Parser Rule,只能使用+, *, ?

但是可以对Lexer Rule使用~操作符号

antlr的缺点之一

出于性能的考虑,Antlr没有实现完全的LL(K)解析,而是用了线性的LL(K),但是线性LLK会产生很多的不确定性。经常导致你需要将自然的Parser Rule改写为不自然的形式。

不过据说Antlr 3将提供完全的LL(K)实现,不过从目前的进度来看,感觉要到2007年能推出就不错了:(

发布Sqlite Developer Preview 0.89

更新历史:

  • Updated:Now we can switch opened database in query form.
  • Updated:Upgrade sqlite dll to 3.26.
  • New: Added Log Tab to Query Form
  • Updated: after executing create and drop table, view, trigger, index sql , db explorer will automatically be refreshed.
  • New: Basic db schema extract function.
  • New: View and Edit Blob Field.
  • New: implement Database MainMenu.
  • Fixed: Do not invoke autocomplete in comment block.
  • Fixed: when clear sql monitor sql edit was not cleared.
  • Fixed: now sql parser can correctly process sql which contains mulit-line comment.
  • Fixed: DB Explorer will show plus sign before node even child node count=0.
  • New: Add Explain Query Plan Function.

下载:这里

vxworks 和 vmware

因为VxSim模拟器支持的VxWorks功能有限,因此想装一个真正的VxWorks的运行环境,最开始想到的是在vmware上装一个,这样可以比较省事,但是花了一下午的时间,在MS—DOS虚机上装出来的VxWorks一启动就崩溃了,总是不行,后来在Google上查了一下,才发现Vmware不支持VxWorks,据说Wind River开发组的人内部是用修改过的Vmware和特殊的BSP以及驱动进行的开发,可惜我拿不到那样的版本,郁闷。看来只能老老实实的找台破电脑。

发布Sqlite Developer Preview 0.84

更新历史

  • Fixed:switch system objects and non-sys objects does not hide the system index(Which was introduced in ver0.75).
  • Fixed: disable Edit Table for System Table schema and data.
  • Updated: Now you can double click on field to view multi-line memo field data.
  • New: basic sql autocomplete function.
  • New: Add SQL monitor.
  • New: Add SQL history.
  • Fixed: some quirk focus problem.
  • Fixed: does not show explain results.(which was introduced in ver 0.75)
  • Updated: executing setting pragma command(pragma name=value) will not show data grid.

下载 这里

系统移植的一个常见问题

最近要把一个其他系统上的程序移植到Windows,其中用到一个数据文件,用原来的程序在Windows上编译后,一运行就访问越界,跟踪后发现,解析文件数据时,凡是读取ULong的地方,数据都取反了,问了一下,原来系统是基于Motorola的CPU的,而motorola CPU同Intel CPU的Word中高低位字节存放顺序正好是反的,因此ULong转换失败,写了一个高低字节转换程序就OK了。这应该是异构系统移植一个常见问题

发布Sqlite Developer Preview 0.8

更新历史

  • Fixed:Registered Db was not loaded after starting program(Which was not corrected as expected in ver0.75).
  • New: Basic index management (drop , reindex, create, view).
  • Updated: Added Data Edit Tab to Edit Table Dialog.
  • Update: Add Hints to toolbar button.
  • New: Add reindex function to table.
  • Fixed: Trigger display order was not correct.
  • Fixed: created table display order was not correct.
  • Fixed: options dialog always show the data export options even select sql editor option node. (Introduced in ver0.75)
  • New: Add View SQL command to View node.
  • Fixed:Does not show pragma command execute result(introduced in ver0.75)

    下载地址:这里

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