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Sybase及SQL Anywhere SQL语句小结

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根据SQL Anywhere User's Guide所作小结。绝大部分都可用直接于Sybase数据库。 SELECT语句 SELECT * ; FROM employee SELECT * ; FROM employee ; ORDER BY emp_lname ASC SELECT * ; FROM employee ; ORDER BY emp_lname DESC SELECT emp_lname, dept_id, birth_date ; FROM employee SELECT * ; FROM employee ; WHERE emp_fname='John' (一定使用单引号)
SELECT emp_fname, emp_lname, birth_date ; FROM employee ; WHERE emp_fname = 'John' ; ORDER BY birth_date SELECT emp_lname, birth_date ; FROM employee ; WHERE birth_date < 'March 3, 1964' (=、<、>、<=、>=、<>,加上AND与OR) SELECT emp_lname, emp_fname ; FROM employee ; WHERE emp_lname LIKE 'br%' (%、_) SELECT emp_lname, emp_fname ; FROM employee ; WHERE SOUNDEX( emp_lname ) = SOUNDEX( 'Brown' ) (找出英文中发音相同的记录,中文下用处不大) SELECT emp_lname, birth_date ; FROM employee
; WHERE birth_date BETWEEN '1965-1-1' AND '1965-3-31' SELECT emp_lname, emp_id ; FROM employee ; WHERE emp_lname IN ('yeung', 'bUCceri', 'charlton') 连接表 SELECT * ; FROM sales_order, employee ; WHERE sales_order.sales_rep = employee.emp_id SELECT E.emp_lname, S.id, S.order_date ; FROM sales_order as S, employee as E ; WHERE S.sales_rep = E.emp_id ; ORDER BY E.emp_lname 连接两表的快捷键:KEY JOIN及NATURAL JOIN,最好用WHERE. SELECT emp_lname, id, order_date
; FROM sales_order ; KEY JOIN employee (主键与外部键对应的地方,就可以用KEY JOIN) SELECT company_name, ; CAST( SUM(sales_order_items.quantity * product.unit_price) AS INTEGER) AS value ; FROM customer ; KEY JOIN sales_order ; KEY JOIN sales_order_items ; KEY JOIN product ; GROUP BY company_name SELECT emp_lname, dept_name ; FROM employee ; NATURAL JOIN department (找出两表间有相同的字段名,进行连结) 集合 SELECT count( * ) ; FROM employee SELECTcount( * ),
; min( birth_date ), ; max( birth_date ) ; FROM employee (MIN, MAX, COUNT, AVG, SUM, LIST,作为单独的一列选出) SELECT sales_rep, count( * ) ; FROM sales_order ; GROUP BY sales_rep (在使用GROUP BY时,对于GROUP BY指定的字段,其每一个不同的值都会组成一行) SELECT sales_rep, count( * ) ; FROM; sales_order ; KEY JOIN employee ; GROUP BY sales_rep ; HAVING count( * ) > 55 更新数据库 INSERT ; INTO department ( dept_id, dept_name, dept_head_id ) ; VALUES ( 220, 'Eastern Sales', 902 ) INSERT
; INTO department ; VALUES ( 220, 'Eastern Sales', 902 ) UPDATE employee ; SET dept_id = 400, manager_id = 1576 ; WHERE emp_id = 195 DELETE ; FROM employee ; WHERE termination_date IS NOT NULL DELETE ; FROM employee ; WHERE LEFT( phone, 3 ) = '617' AND manager_id = 902 视图 CREATE VIEW emp_dept AS ; SELECT emp_fname, emp_lname, dept_name ; FROM employee ; JOIN department ON department.dept_id = employee.dept_id SELECT *
; FROM emp_dept (视图能自动更新状态) DROP VIEW emp_dept CREATE VIEW emp_dept(FirstName, LastName, Department) AS ; SELECT emp_fname, emp_lname, dept_name ; FROM employee JOIN department ON department.dept_id = employee.dept_id (创建视图不能使用ORDEY BY,但使用视图可以使用) SELECT LastName, dept_head_id ; FROM emp_dept, department ; WHERE emp_dept.Department = department.dept_name (将视图与其他表进行进一步的连结) 视图权限治理 GRANT CONNECT TO M_Kelly IDENTIFIED BY SalesHead CREATE VIEW SalesEmployee AS
SELECT emp_id, emp_lname, emp_fname FROM "dba".employee WHERE dept_id = 200 GRANT SELECT ON SalesEmployee TO M_Kelly CONNECT USER M_Kelly IDENTIFIED BY SalesHead ; SELECT * FROM "dba".SalesEmployee 子查询 SELECT * ; FROM sales_order_items ; WHERE prod_id IN ;( SELECT id ;;;;;FROM product ;;;;;WHERE quantity < 20 ) ; ORDER BY ship_date DESC SELECT * ; FROM fin_data ; WHERE fin_data.code = ANY (; SELECT fin_code.code
;FROM fin_code ;WHERE type = 'revenue' ) (=ANY 相当于IN) SELECT * ; FROM fin_data ; WHERE fin_data.code <> ALL (; SELECT fin_code.code ;FROM fin_code ;WHERE type = 'revenue' ) (相当于NOT IN) SELECTsales_order.id, sales_order.order_date, ; ( SELECT company_name ;FROM customer ;WHERE customer.id = sales_order.cust_id ) ; FROMsales_order ; WHERE order_date > '1994/01/01' ; ORDER BY order_date (假如其他表只要求产生一个字段,就可以使用子查询来代替连接) SELECT company_name, state, ; ( SELECT MAX( id )
;FROM sales_order ;WHERE sales_order.cust_id = customer.id ) ; FROM customer ; WHERE state = 'WA' 根据SQL Anywhere User's Guide所作小结。绝大部分都可用直接于Sybase数据库。 SELECT语句 SELECT * ; FROM employee SELECT * ; FROM employee ; ORDER BY emp_lname ASC SELECT * ; FROM employee ; ORDER BY emp_lname DESC SELECT emp_lname, dept_id, birth_date ; FROM employee
SELECT * ; FROM employee ; WHERE emp_fname='John' (一定使用单引号) SELECT emp_fname, emp_lname, birth_date ; FROM employee ; WHERE emp_fname = 'John' ; ORDER BY birth_date SELECT emp_lname, birth_date ; FROM employee ; WHERE birth_date < 'March 3, 1964' (=、<、>、<=、>=、<>,加上AND与OR) SELECT emp_lname, emp_fname ; FROM employee ; WHERE emp_lname LIKE 'br%' (%、_) SELECT emp_lname, emp_fname ; FROM employee ; WHERE SOUNDEX( emp_lname ) = SOUNDEX( 'Brown' )
(找出英文中发音相同的记录,中文下用处不大) SELECT emp_lname, birth_date ; FROM employee ; WHERE birth_date BETWEEN '1965-1-1' AND '1965-3-31' SELECT emp_lname, emp_id ; FROM employee ; WHERE emp_lname IN ('yeung', 'bucceri', 'charlton') 连接表 SELECT * ; FROM sales_order, employee ; WHERE sales_order.sales_rep = employee.emp_id SELECT E.emp_lname, S.id, S.order_date ; FROM sales_order as S, employee as E ; WHERE S.sales_rep = E.emp_id ; ORDER BY E.emp_lname
连接两表的快捷键:KEY JOIN及NATURAL JOIN,最好用WHERE. SELECT emp_lname, id, order_date ; FROM sales_order ; KEY JOIN employee (主键与外部键对应的地方,就可以用KEY JOIN) SELECT company_name, ; CAST( SUM(sales_order_items.quantity * product.unit_price) AS INTEGER) AS value ; FROM customer ; KEY JOIN sales_order ; KEY JOIN sales_order_items ; KEY JOIN product ; GROUP BY company_name SELECT emp_lname, dept_name ; FROM employee ; NATURAL JOIN department (找出两表间有相同的字段名,进行连结) 集合 SELECT count( * )
; FROM employee SELECTcount( * ), ; min( birth_date ), ; max( birth_date ) ; FROM employee (MIN, MAX, COUNT, AVG, SUM, LIST,作为单独的一列选出) SELECT sales_rep, count( * ) ; FROM sales_order ; GROUP BY sales_rep (在使用GROUP BY时,对于GROUP BY指定的字段,其每一个不同的值都会组成一行) SELECT sales_rep, count( * ) ; FROM; sales_order ; KEY JOIN employee ; GROUP BY sales_rep ; HAVING count( * ) > 55 更新数据库 INSERT ; INTO department ( dept_id, dept_name, dept_head_id )
; VALUES ( 220, 'Eastern Sales', 902 ) INSERT ; INTO department ; VALUES ( 220, 'Eastern Sales', 902 ) UPDATE employee ; SET dept_id = 400, manager_id = 1576 ; WHERE emp_id = 195 DELETE ; FROM employee ; WHERE termination_date IS NOT NULL DELETE ; FROM employee ; WHERE LEFT( phone, 3 ) = '617' AND manager_id = 902 视图 CREATE VIEW emp_dept AS ; SELECT emp_fname, emp_lname, dept_name ; FROM employee
; JOIN department ON department.dept_id = employee.dept_id SELECT * ; FROM emp_dept (视图能自动更新状态) DROP VIEW emp_dept CREATE VIEW emp_dept(FirstName, LastName, Department) AS ; SELECT emp_fname, emp_lname, dept_name ; FROM employee JOIN department ON department.dept_id = employee.dept_id (创建视图不能使用ORDEY BY,但使用视图可以使用) SELECT LastName, dept_head_id ; FROM emp_dept, department ; WHERE emp_dept.Department = department.dept_name (将视图与其他表进行进一步的连结) 视图权限治理 GRANT CONNECT TO M_Kelly
IDENTIFIED BY SalesHead CREATE VIEW SalesEmployee AS SELECT emp_id, emp_lname, emp_fname FROM "dba".employee WHERE dept_id = 200 GRANT SELECT ON SalesEmployee TO M_Kelly CONNECT USER M_Kelly IDENTIFIED BY SalesHead ; SELECT * FROM "dba".SalesEmployee 子查询 SELECT * ; FROM sales_order_items ; WHERE prod_id IN ;( SELECT id ;;;;;FROM product ;;;;;WHERE quantity < 20 ) ; ORDER BY ship_date DESC SELECT *
; FROM fin_data ; WHERE fin_data.code = ANY (; SELECT fin_code.code ;FROM fin_code ;WHERE type = 'revenue' ) (=ANY 相当于IN) SELECT * ; FROM fin_data ; WHERE fin_data.code <> ALL (; SELECT fin_code.code ;FROM fin_code ;WHERE type = 'revenue' ) (相当于NOT IN) SELECTsales_order.id, sales_order.order_date, ; ( SELECT company_name ;FROM customer ;WHERE customer.id = sales_order.cust_id ) ; FROMsales_order ; WHERE order_date > '1994/01/01' ; ORDER BY order_date (假如其他表只要求产生一个字段,就可以使用子查询来代替连接)
SELECT company_name, state, ; ( SELECT MAX( id ) ;FROM sales_order ;WHERE sales_order.cust_id = customer.id ) ; FROM customer ; WHERE state = 'WA' SELECT; company_name, MAX( sales_order.id ),state ; FROM customer ; KEY LEFT OUTER JOIN sales_order ; WHERE state = 'WA' ; GROUP BY company_name, state 系统表 SYSCATALOG,查看所有的表 SYSCOLUMNS, 查看表的字段属性 ; FROM customer ; KEY LEFT OUTER JOIN sales_order ; WHERE state = 'WA' ; GROUP BY company_name, state
系统表 SYSCATALOG,查看所有的表 SYSCOLUMNS, 查看表的字段属性