online database schema drawing tool

Tags: www sch contains lan Linux usr hang strong andPick to: This paper describes the problemof MySQL DDL , thept-online-schema-change of the work principle , and the actual use of The pt-online-schema-change tool modifies the 160 million-level data table structure on-line

Pt-Online-schema-change of MySQL online DDL Tool MySQL DDL:DDL is a feature that makes all MySQL ddbas criticized, because in MySQL, when dDDL is performed on a table, it locks the table. When the table is small, such as less than 1 W rows, it has little impact on the front-end, if tens of millions of tables are encoun

Tags: Picture today pos INF schema facilitates stored procedure body SQLWe all know that the function of VS is so much more than you used to, and today this new schema Comparison, what he can do is to compare the architecture and structure of our two databases in VS, and be able to update the past or generate scripts.STEP.1 (tool--sql server--new

(); Buildlinestyle (); Buildcolor (); Buildnewfunction (); Buildsavefunction (); Buildopenfunction (); Toolbar.installevents ();}1. Create a drawing command button line, rectangle, circle, etc. buildcommandbutton establish a line, rectangle, Circle button Object Timagebutton,timagebutton Detailed introduction You can view the previous chapter HTML5 canvas Online Brush