In SQL, the SELECT INTO statement is used to copy data from one table to another. In this tutorial, you will learn about the SQL SELECT INTO statement with the help of examples.
The SQL SELECT INTO StatementThe SELECT INTO statement copies data from one table into a new table.SELECT INTO SyntaxCopy all columns into a new table:SELECT * INTO newtable [IN externaldb] FROM oldtableWHERE condition; Copy only some columns into a new table:...
Summary: in this tutorial, you will learn how to use the PL/pgSQL select into statement to select data from the database and assign it to a variable. Introduction to PL/pgSQL Select Into statement The select into statement allows you to select data from the database and assign it to a...
PostgreSQL SELECT INTO Summary: in this tutorial, you will learn how to use the PostgreSQL SELECT INTO statement to create a new table from the result set of a query. If you want to select data into variables, check out the PL/pgSQL SELECT INTO statement. Introduction to PostgreSQL SELECT...
SQL Copy在上述示例中,我们使用select into语句从名为”employees”的表中选择年龄大于30的员工数据,并将结果插入到新创建的”new_employees”表中。新表的结构和数据将根据原始表动态创建。使用select into语句创建表的优点是方便快捷。它适用于需要根据现有数据创建新表的场景,如数据备份、临时表的创建...
The following example demonstrates using theSELECT INTOstatement to query a single value into a PL/SQL variable, entire columns into PL/SQL collections, or entire rows into a PL/SQL collection of records: DECLARE howmany NUMBER; some_first employees.first_name%TYPE; ...
typeint)insertinto#JobInfoexecmsdb..sp_help_job 返回错误信息:INSERT EXEC 语句不能嵌套。 Msg 8164, Level 16, State 1, Procedure sp_get_composite_job_info, Line 72 An INSERT EXEC statement cannot be nested. 展开错误信息中的存储过程:
SELECT ... INTO DUMPFILEwrites a single row to a file without any formatting. A givenSELECTstatement can contain at most oneINTOclause, although as shown by theSELECTsyntax description (seeSection 15.2.13, “SELECT Statement”), theINTOcan appear in different positions: ...
使用 SELECT INTO 语句备份表时,需要注意新表的结构和选择的列的匹配。同时,还可以使用该语句创建临时表或将查询结果插入到其他表中。 希望本文对你理解 SQL Server SELECT INTO 备份表的使用有所帮助! 参考资料 Microsoft Docs: [SELECT INTO (Transact-SQL)]( W3Schools: [SQL SELECT INTO Statement](...
INSERT INTO SELECT Syntax The syntax of the SQLINSERT INTO SELECTstatement is: INSERTINTOdestination_table (column1, column2, column3, ...)SELECTcolumn1, column2, column3, ...FROMsource_table; Here, destination_tableis the name of the table where the data is to be inserted ...