Database

ASP-db
A component for quickly publishing databases over the web. By Major Micro Systems, Inc.
http://www.aspdb.com/

AxpDB
DataGrid for ASP Classic (ASP.NET version also available). Publish tables or queries from Access, MS SQL, Oracle or any other ODBC/ADO enabled database on the web with just 5 lines of code. By Axezz.
http://www.axezz.com/AxpDb/

BinaryWorX BXQuery 3
A SQL query designing component.
http://www.binaryworx.com

ContourCube
An OLAP component for interactive reporting and data analysis. Allows to create web-based OLAP solutions.
http://www.contourcomponents.com/contourcube.htm

ECHO - Embedded Component Historian Object
Builds high speed historians (100,000+ values per second) for archiving time series data in Windows applications. By OSIsoft. [Control, Commercial]
http://www.echohistorian.com/main.asp?section=18

ELS-QB
A query builder ActiveX component which gives end-users the ability to create complex queries via intuitive visual interface. By Epsilon-Logic Systems. [Commercial]
http://www.epsilon-logic.net/ELSQBDetails79.asp

SCGrid ActiveX Grid Control
It has the ability to CellOver and CellOut events, to edit cells with a drop-down list, and to attach bitmaps to cells. Fixed cells are given negative numbers so that unfixed cells always start with 0.
http://www.scgrid.com/scgrid-overview.asp

Sequel
An object-oriented wrapper for ODBC implementation for Win32 platforms.
http://www.rawos.com/odbc/

SoftArtisans ExcelWriter
High performance native Excel document (worksheets, charts) generator from a database or any ADO recordset that does not rely on an installation of Microsoft Excel software. By 2001 SoftArtisans, Inc.
http://www.softartisans.com/softartisans/excelwriter.html

TaBliz
A shareware component that builds a web-based data entry interface for Access databases. By October 28.
http://www.october28.com/TaBliz.asp