2-01： 1.select * from city 2.select distinct OrderDate from orders 3.select * from suppliers where SuppCode='HHT' 4.select * from suppliers where SuppCode!='HHT' 5.select Descr iptions,UnitPrice from products where UnitPrice between 0 and 20 6.selec
SQL Hacks Whether you're running Access, MySQL, SQL Server, Oracle, or PostgreSQL, this book will help you push the limits of traditional SQL to squeeze data effectively from your database. The book offers 100 hacks -- unique tips and tools -- that
以下是俺学习参考别人有关NOTES与关系数据库互相操作的文档后更新的LOTUSscr ipt程序代码 Set con=New ODBCConnection Set qry=New ODBCQuery Set rs=New ODBCResultSet Set qry.Connection = con Set rs.Query=qry Set ws=New notesuiworkspace Set uidoc=ws.currentdocument Dim s As New NotesSession
Select 用途： 从指定表中取出指定的列的数据 语法： SELECT column_name(s) FROM table_name 解释： 从数据库中选取资料列，并允许从一或多个资料表中，选取一或多个资料列或资料行。SELECT 陈述式的完整语法相当复杂，但主要子句可摘要为： SELECT select_list [ INTO new_table ] FROM table_source [ WHERE search_condition ] [ GROUP BY group_by_expre
If you're a programmer or database administrator who uses SQL in your day-to-day work, this popular pocket guide is the ideal on-the-job reference. You'll find many examples that address the language's complexity, along with key aspects of SQL used
Select 用途： 从指定表中取出指定的列的数据 语法： SELECT column_name(s) FROM table_name 解释： 从数据库中选取资料列，并允许从一或多个资料表中，选取一或多个资料列或资料行。SELECT 陈述式的完整语法相当复杂，但主要子句可摘要为： SELECT select_list [ INTO new_table ] FROM table_source [ WHERE search_condition ] [ GROUP BY group_by_expre
create table department (dept_id smallint unsigned not null auto_increment, name varchar(20) not null, constraint pk_department primary key (dept_id) ); create table branch (branch_id smallint unsigned not null auto_increment, name varchar(20) not n
I had met Itzik Ben-Gan briefl y a couple of times and knew of his reputation, so I was looking forward to his afternoon session on avoiding cursors in SQL programming at PASS. I was lucky to get there early, as the large room fi lled up quickly. It
一些习题，有助于加深SQL查询。 Relational algebra and SQL Query Consider the following schema of a company database: Employees(eid, ename, address, supereid) Departments(did, dname) Projects(pid, pname, did) Works_on(eid, pid, hours) (1)For each employee, find hi
