Note:TheSELECT INTOstatement creates a new table. If the database already has a table with the same name,SELECT INTOgives an error. If you want to copy data to an existing table (rather than creating a new table), you should use theINSERT INTO SELECTstatement. Copy Selected Columns Only ...
SELECT*INTOCustomersGermany FROMCustomers WHERECountry ='Germany'; The following SQL statement copies data from more than one table into a new table: SELECTCustomers.CustomerName, Orders.OrderID INTOCustomersOrderBackup2017 FROMCustomers LEFTJOINOrdersONCustomers.CustomerID = Orders.CustomerID; ...
SELECT INTOsyntax is: SELECT[COLUMN NAME 1], [COLUMN NAME 2] ,... INTO[BACKUP TABLE NAME] FROM[TABLE NAME] EXAMPLE 1 : Let’s say we want to create a copy of theGameScorestable and data. SQL Statement: SELECT*INTOGameScores_backup FROMGameScores SELECT INTOstatement also can export t...
SELECT INTO Statement TheSELECTINTOstatement retrieves data from one or more database tables, and assigns the selected values to variables or collections. For a full description of theSELECTstatement, seeOracle Database SQL Reference. In its default usage (SELECT ... INTO), this statement retriev...
源自MySQL 5.7 官方手册SELECT...INTO Syntax 一、SELECT...INTO介绍 SELECT...INTO用来将查询结果存储在变量或者写入文件中。 SELECT... ... [INTOOUTFILE'file_name'[CHARACTERSETcharset_name] export_options |INTODUMPFILE'file_name'|INTOvar_name [, var_name]] ...
如果发生下列两种情况中的一种,SQL Server 数据库引擎 将引发编号为 511 的异常错误并回滚当前运行的语句: SELECT 语句生成超过 8,060 字节的结果行或中间级工作表。 尝试对超过 8,060 字节的行执行 DELETE、INSERT 或 UPDATE 语句。 如果没有为 SELECT INTO 或 CREATE VIEW 语句创建的列指定列名,将会发生错误...
DELETE、INSERT 或 UPDATE 陳述式試圖處理超出 8,060 位元組的資料列。 如果SELECT INTO 或 CREATE VIEW 陳述式所建立的資料行未指定資料行名稱,便會發生錯誤。 另請參閱 SELECT 範例 (Transact-SQL) 運算式 (Transact-SQL) SELECT (Transact-SQL)意見...
export_options|INTODUMPFILE'file_name'|INTOvar_name [, var_name]] [FOR{UPDATE|SHARE} [OFtbl_name [, tbl_name] ...] [NOWAIT|SKIPLOCKED]|LOCKINSHARE MODE]] 2 select语句关键词介绍 select_expr关键词代表要查询的字段,至少要有一个select_expr,或者如果是查询所有字段,则用*号代替; ...
PL/SQL SELECT INTO statement is the simplest and fastest way to fetch a single row from a table into variables. The following illustrates the syntax of the PL/SQL SELECT INTO statement: SELECT select_list INTO variable_list FROM table_name WHERE condition; Code language: PostgreSQL SQL dialect...
SELECT INTO FROM 语法的基本格式如下: SELECTcolumn1,column2,...INTOnew_tableFROMtable_nameWHEREcondition; 1. 2. 3. 4. 其中,column1, column2, ...是需要选择的列名;new_table是新表的名称;table_name是源表的名称;condition是可选的查询条件。