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Find out the main backend of ASP. NET 2.0 "ins"-aspnetdb Database relationship diagram, tables, and views (1) Basic Tables and independent tables Aspnetdb is hidden in the four plug-ins of ASP. NET 2.0"(Sqlmembershipprovider,Sqlroleprovider,Sqlprofileprovider,Sqlpersonalizationprovider)Then, from time to time, the ghost SQL database appears in your app_data directory, in fact, there is nothing magical,I waited for the common saying to go in and see it. However, if we want to write a custom pro

1. Only copy the table structure without copying data Select * into B from a where 1 2. Table data migration table B already exists: Insert into B (d, e, f) Select a, B, c from; Table B originally does not exist: Create Table B (select a, B, c from ); 3. Create a

I have a topic table, including content title author and other information, accompanied by a Topic_extra contains the number of replies, likes, satisfaction reply, update and other information. A total of 14 fields, each table after the split is only six or seven, I think the table can be small, small bar. The contradiction is that when the query needs to be fe

First, business needsSome users in the web system do not like paging, hoping that the data can be displayed in a single page.But there are scroll bars in the page, and when you look at the data below, you don't know which header column corresponds to the column in the data row.That is, there is no way to know what data this column is.So, I want the table title fixed, and the data row in the data too much when the scroll bar appears, so more humane.Sec

The last time we mentioned that not using the Left-loin Association query, it might be to improve efficiency or to configure caching, or to simplify the writing of SQL statements. Just write a single-table query, SQL is really too simple. The problem is that querying data for multiple tables is still very much needed.So there is a strong need to query 2 collections, how to combine data from 2 collections into 1 sets, and data associations to be correc

Label:1. Createdatabase table-which database to use, if you do not write this sentence is the default database, you can also use the mouse to select the current database using TestDB--CREATE TABLE TableName (--id represents the field name NT data type--primary key primary key--not null non-null--identity (All) initial value is 1 per self-growth 1 ID int primary key Not null identity (--unique), unique name

1. Create a database table --which database to use, if you do not write this is the default database, you can also use the mouse to select the current database using testdb -Create a table tablename ( --id represents the field name --int data type --primary key primary --not null --identity (1,1) initial value is 1 per self growth 1 ID int PRIMARY key NOT NULL ID Entit

Tags: LTE modify change div Add char class weight font Alter TableTest rename test1;--Modify Table name Alter TableTestAdd columnNamevarchar(Ten);--Adding table Columns Alter TableTestDrop columnName--Delete a table column Alter TableTest Modify AddressChar(Ten)--modifying table column types ||Alter TableTest Chan

The table to be shared today can not only display data, but also edit data. When you click the data, the corresponding data grid becomes editable, today, the theme begins on a new day, and life will continue. Today we want to share with you a different table, which is used to display data, the table to be shared today can not only display data, but also edit data

Recently, when I was working on a project, I had such a requirement. Because the data volume of some tables is too large, I Would Like To generate a backup table every year to back up the data of the previous year to the newly generated backup table, because of the large amount of data, we need to consider the efficiency of data query. That is, simply copying the table