get max id in sql

Original: LINQ to SQL (Group by/having/count/sum/min/max/avg operator)Group by/having operatorScenario : grouping data to narrow the scope for us to find data.Description : An enumerable object that is assigned and returned after a group operation

select/distinct operatorApplication Scenario : O (∩_∩) o ... Query for Bai.Description : Unlike the SELECT function in the SQL command, the SELECT and the clauses in the query expression are placed at the end of the expression and the variables in

Linq to SQL (Group By/Having/Count/Sum/Min/Max/Avg operator ),Group By/Having Operator Applicable scenarios: Grouping data. narrow down the scope of data for us. Description: Assigns and returns the enumerated objects after grouping the input

Http://wenku.baidu.com/link?url= 2rscun4mum1slbh-lhyzptmgfmieukrwaojgkgpkihkheafjcx2y-hvttnmb1bqjpndwaopcflaajfy6k36ioch_d82bk2ccu468uzdrxvgApplication research of data access technology based on linq+to+entityGroup by/having operatorScenario :

This article transferred from: http://www.cnblogs.com/jack-liang/archive/2011/03/22/1991554.htmlGroup by/having operatorScenario : grouping data to narrow the scope for us to find data.Description : An enumerable object that is assigned and returned

Group by/having operatorScenario : grouping data to narrow the scope for us to find data.Description : An enumerable object that is assigned and returned after a group operation on an incoming parameter. To group or delay1. Simple form:var q = from

1 INSERT INTO user (Username,password) VALUES ('zyl','123' ); 2 // gets the value of the self-growth ID just inserted 3 Select last_insert_id (); In MySQL, using the ID field of the Auto_increment type as the primary key for the table, and use

Normal row-column conversion (version 1.0) only provides static and dynamic writing for SQL server 2000, and version 2.0 adds SQL server 2005 writing. Question: Suppose there is a student orders table (tb) as follows: Name course score Zhang San

Normal row-column conversion (version 1.0) only provides static and dynamic writing for SQL Server 2000, and Version 2.0 adds SQL Server 2005 writing. Question: Suppose there is a student orders table (TB) as follows: Name course score Zhang

When we do a table operation on MySQL, we will not be able to rely on MySQL's autoincrement to produce a unique ID because the data is scattered across multiple tables.Should try to avoid the use of self-increasing IP to do the primary key, for the