round(SUM(y)over(ORDERBYn))yFROM(SELECTn,cos(n/30*3.1415926)*2x,sin(n/30*3.1415926)yFROM(SELECTrownum-1nFROMall_objectsWHERErownum<=30+30)))a,(SELECTn,(SUM(x)over(ORDERBYn))x,round(SUM(y)over(ORDERBYn
SQL SELECT INTO 语句可用于创建表的备份复件。 SELECT INTO 语句 SELECT INTO 语句从一个表中选取数据,然后把数据插入另一个表中。 SELECT INTO 语句常用于创建表的备份复件或者用于对记录进行存档。 SQL SELECT INTO 语法 您可以把所有的列插入新表: SELECT * INTO new_table_name [IN externaldatabase] FR...
SELECT[name], compatibility_levelFROMsys.databases; To determine the version of the Database Engine that you're connected to, execute the following query. SQL SELECTSERVERPROPERTY('ProductVersion'); Compatibility levels and database engine upgrades ...
By default,SELECT INTOcreates a new table in the current database. If we want to copy data to a table in a different database, we can do that by using theINclause. For example, -- copy contents of a table to another databaseSELECT*INTOCustomersCopyINanother_db.mdbFROMCustomers; Here,...
SELECT LastName FROM [KAWLAPTOP\SQLEXPRESS2014].[AdventureWorks2012].[Person].[Person] to do a query. Luckily we typically write queries within the context of one database so we only need to specify the Schema and TableName as so:
代码7.6:在两个数据库里,ALTER DATABASE代码来启用跨数据库所有权链接。 在两个数据库里同时启用了跨数据库所有权链接,你可以再次尝试用SharedLogin的安全上下文访问视图;代码7.7再次展示这个代码。 1USESourceDB;2GO34EXECUTEASLOGIN='SharedLogin';5SELECT*FROMdbo.AlaskaCitiesViewORDERBYPopulationDESC;6GO7REVERT;...
Get an introduction to SQL Database: technical details and capabilities of the Microsoft relational database management system (RDBMS) in the cloud.
DELIMITER // CREATE PROCEDURE my_procedure (IN param1 INT, OUT result INT) BEGIN -- 存储过程的SQL语句SELECT column1 INTO result FROM my_table WHERE another_column = param1; END // DELIMITER ; 在上述示例中: my_procedure 是存储过程的名称。 (IN param1 INT, OUT result INT) 定义了输入参数...
6 SELECT permission on view querying table from another database 4 Need a way to query a table, and JOIN it with the TOP 1 related record from an other table 7 Splitting a csv column from select query into multiple columns 4 Execution plan has TOP operator for query without TOP ...
SELECT st.Field1, st.Field2, st.Field3, at.Field4, at.Field2 FROM AnotherTable at INNER JOIN SomeTable st ON at.Field1=LEFT(st.Field1, 6) WITH cte1 AS (SELECT LEFT(Field1,6) as Field1, Field2, Field3 FROM MyTable WHERE Field1 = SomeValue) SELECT cte1.Field1, cte1.Field...