这时可以用 create temporary table table_name select id,namefromtable 创建临时表 使用临时表时注意事项: 1.自己所用的数据库账号要有建立临时表的权限; 2.在同一条sql中,不能关联2次相同的临时表,不然,就会报如下错误; RROR 1137: Can’t reopen table: ‘temp_table’ 3.临时表在建立连接时可见,关闭时...
Can't update SQL table from designer. Cancel a Radiobutton Click Event Cancel event of DataGridView CellContentClick Cancelling the selectedindexchanged event of combobox Cannot access destination table (Sqlbulkcopy) cannot access non-static field in static context Cannot add a reference to my project...
A MySQL temporary table is a unique type of table that allows you to store data temporarily within a single user session. MySQL temporary table is not that different from a normal MySQL table, except that it is volatile. Once a table has initialized in a specific user session, only that u...
If a temporary table is created with a named constraint and the temporary table is created within the scope of a user-defined transaction, only one user at a time can execute the statement that creates the temp table. For example, if a stored procedure creates a temporary table with a name...
CREATE TABLE ##test ( a INT, b INT ); INSERT INTO ##test VALUES (1, 1); -- Obtain object ID for temp table ##test SELECT OBJECT_ID('tempdb.dbo.##test') AS 'Object ID'; 結果集如下所示。 輸出 複製 1253579504 取得tempdb (2) 中指定物件識別碼 1253579504 的全域暫存資料表名稱...
If a temporary table is created with a named constraint and the temporary table is created within the scope of a user-defined transaction, only one user at a time can execute the statement that creates the temp table. For example, if a stored procedure creates a temporary table with a name...
INSERT @TableVariable VALUES (2) ROLLBACK SELECT * FROM #TempTable /* TT_Col1 --- 1 */ SELECT * FROM @TableVariable --返回了两条记录 /* TV_Col1 --- 1 2 */ 6.参考 http://support.microsoft.com/default.aspx?scid=kb;en-us;305977&Product=sql2k www.sqlserver...
Index on a local temp table. Initial unique clustered index on a view. Disabled clustered indexes. Clustered index if the underlying table contains LOB data types: image, ntext, text, varchar(max), nvarchar(max), varbinary(max), and xml. ...
SQL 参考 SQL 语法 普通租户(Oracle 模式) SQL 语句 DDL CREATE TABLE 更新时间:2024-12-02 16:46:30 编辑 描述 该语句用来在数据库中创建一张新表。 语法 CREATE[GLOBALTEMPORARY]TABLEtable_name(table_definition_list)[table_option_list][partition_option][on_commit_option]CREATE[GLOBALTEMPORARY]TABLEtabl...
CREATE TABLE ##test ( a INT, b INT ); INSERT INTO ##test VALUES (1, 1); -- Obtain object ID for temp table ##test SELECT OBJECT_ID('tempdb.dbo.##test') AS 'Object ID'; Voici le jeu de résultats. Output Copier 1253579504 Obtenir le nom de la table temporaire globale po...