"China Academic Journals" bietet die Abonnement von einzelner Zeitschrift durch RSS-Feed oder kann man direkt das Schlagwort in ganzer Datenbank abonnieren, aber durch das Spiegelserver von der Stabi kann diese Funktion leider nicht realisieren!
MusicBrainz is a user-maintained community music metadatabase...artist names, release titles, tracklist...Its web site is the interface which allows the creation and maintenance of the data, all user-contributed and user-maintained. This means that if you
Confabb is a new service launching today that offers a centralized place to find information about all kinds of conferences. The site offers everything from speaker and event reviews to photos of the events after the fact through integration with Flickr.
SuperQuaiL is a Java SQL query builder. The goal of SuperQuaiL is to help Java developers who code SQL run and create queries easier. Other database tools focus on making it easy to do database administration and it is nice to be able to inspect the database through these tools. PhpMyAdmin, for example, a is nice web front end that you can run from multiple computers, but the interface is clumsy for the developer. For development, building queries is the main task and having a small program that loads quickly is more helpful than having a complicated interface where you can find out almost anything about the database. SuperQuaiL provides nice features to aid in the process of developing queries quick and easy.
Freebase is an open database of the world’s information. It is built by the community and for the community—free for anyone to query, contribute to, build applications on top of, or integrate into their websites.
Related data about elliptic curves, abelian varieties, etc.
William A. Stein
Collection of Tables Related to Modular Forms, Elliptic Curves, and Abelian Varieties
The Modular Forms Explorer (PostgreSQL)
The Interactive Modular Forms Explorer (uses ZOPE)
The Stein-Watkins tables of elliptic curves (see also the paper).
Elliptic Curves Information Calculator
PARI & MAGMA Calculator
Bibtex Reference for the Database
Talks About the Database
Lecture Notes
Software
Das Problem …
PHP-Scripte werden nach einer bestimmten Laufzeit abgebrochen (normalerweise nach 30 Sekunden), und so funktioniert ein Backup mit diversen Tools nur bis zu einer bestimmten Größe.
Braucht das Script länger als die 30 Sekunden, so wird es vom Server einfach abgebrochen, und man kommt nicht mehr an sein Backup heran. Gleiches gilt für das Wiedereinspielen eines Backups.
Wer einmal ein Dumpfile von Hand in viele kleinere Einzelabschnitte zerlegt hat, um eine Datenbank wieder herzustellen, der weiß genau, wovon wir reden.
MySQLDumper ist die Lösung …
MySQLDumper umgeht den Timeout-Error mit Hilfe eines kleinen Tricks: Er liest nur eine bestimmte Anzahl von Datensätzen aus der Tabelle aus, merkt sich, wie weit er gekommen ist, und ruft sich anschließend selbst auf. Dadurch erhält das Script bei jedem Aufruf wieder die vollen 30 Sekunden und umgeht so den Timeout-Error. Das gleiche Prinzip benutzt MySQLDumper auch beim Wiederherstellen der Daten.
MySQLDumper kann die Daten beim Sichern sofort packen. Auch das Wiederherstellungsscript kann direkt aus dieser gepackten Datei lesen, ohne dass sie auf dem Server entpackt werden muss! Natürlich kann man die Datei auch ungepackt lassen, aber spätestens beim Hochladen eines Backups weiß man dies zu schätzen.
Scriptella is an open source ETL (Extract-Transform-Load) and script execution tool written in Java.
Our primary focus is simplicity. You don't have to study yet another complex XML-based language - use SQL (or other scripting language suitable for the data source) to perform required transformations.
Apache Derby, an Apache DB subproject, is an open source relational database implemented entirely in Java.
Formerly known as IBM Cloudscape it is now included in Java 6 as Java DB.
memcached is a high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web applications by alleviating database load.
DB Schema Viewer is an Eclipse plugin that builds a graphical view of an existing database. Reverse Engineering is performed through JDBC. The most popular databases are currently supported:
* MySQL
* PostgreSQL
* Firebird
CiteXplore combines literature search with text mining tools for biology.
Search results are cross referenced to EBI applications based on publication identifiers.
Links to full text versions are provided where available.
Tokyo Cabinet is a library of routines for managing a database. The database is a simple data file containing records, each is a pair of a key and a value. Every key and value is serial bytes with variable length. Both binary data and character string can be used as a key and a value. There is neither concept of data tables nor data types. Records are organized in hash table or B+ tree.
log4jdbc is a JDBC driver that can log SQL and/or JDBC calls (and optionally SQL timing information) for other jdbc drivers using the Simple Logging Facade For Java (SLF4J) logging system.
T. Zhang, R. Ramakrishnan, and M. Livny. Proceedings of the 1996 ACM SIGMOD International Conference on Management of Data (SIGMOD'96), page 103--114. (1996)
Y. Zhuge, H. Garc\'ıa-Molina, J. Hammer, and J. Widom. SIGMOD '95: Proceedings of the 1995 ACM SIGMOD international conference on Management of data, page 316--327. New York, NY, USA, ACM, (1995)