___在T-SQL中,将查询结果保存到新表(NewTable)中的语句是SELECT列1,列2intoNewTable FROM 表1SELECT查询列表序列INTOFROM数据源在SQL Server 2008中,设要在T表上创建一个针对插入和更新操作的后触发型触发器。请补全下列语句:CREATE TRIGGER tri_T ON T1AFTERINSERT,UPDATE AS ...在T-SOL中,提取cur1游标...
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] FROM old_tablename 或者只把希望的列插入新表: SELECT column_name(s) INTO new_table_name [IN externaldatabase] FROM old_tablenam...
Note: The SELECT INTO statement creates a new table. If the database already has a table with the same name, SELECT INTO gives an error. If you want to copy data to an existing table (rather than creating a new table), you should use the INSERT INTO SELECT statement. Copy Selected Co...
SELECT INTO: 从一个表中选择数据,然后将这些数据插入到另一个表中去。通常用于备份表。 选择所有列: Syntax: SELECT * INTO new_table_name [IN externaldatabase] FROM old_tablename Example: SELECT * INTO Persons_Backup IN 'Backup.mdb' FROM Persons 选择若干列: Syntax: SELECT column_name(s) INTO...
INTOnewtable[INexternaldb] FROMoldtable WHEREcondition; Copy only some columns into a new table: SELECTcolumn1,column2,column3, ... INTOnewtable[INexternaldb] FROMoldtable WHEREcondition; The new table will be created with the column-names and types as defined in the old table. You can ...
-- Create a new table with columns from the existing table Person.Address.-- A new IDENTITY column is created by using the IDENTITY function.SELECTIDENTITY(int,100,5)ASAddressID, a.AddressLine1, a.City, b.NameASState, a.PostalCodeINTOPerson.USAddressFROMPerson.AddressASaINNERJOINPerson.State...
解析 A 正确答案:A 解析:SQL SELECT语句中INTO TABLE短语和INTO DBF短语都可用来定义将查询结果存放到永久表中。另外,INTO ARRAY将查询结果存放到数组,INTO CURSOR将查询结果存放到临时表,TO FILE将查询结果存放到文本文件中。 知识模块:关系数据库标准语言SQL...
正确答案:A解析:在SQL SELECT语句中,对于查询结果的输出有如下几个选项:INTO ARRAY(把查询结果存放到数组当中);INTO CURSOR(把查询结果存放到临时的数据表文件当中);INTO DBF | TABLE(将查询结果存放到永久表中(dbf文件));TO FILE(把查询结果存放到文本文件当中):TO PRINTER(把查询结果输出到打印机)。INTO DBF...
【答案】：A A。【解析】使用短语INT()DBFITABLE TABLENAME可以将查询结果存放到永久表(．dbf文件)。所以INTODBF和INTOTABLE是等价的。
注: Sql Server select * into new_tab from tab; Oracle create table new_tab as select * from tab; 在Oracle中select * into from不可以使用,请用create table NewTable as select * from ATable;代替该功能!!!