You can duplicate an existing table in SQL Server by using SQL Server Management Studio or Transact-SQL by creating a new table and then copying column information from an existing table. These steps described duplicate only the structure of a table, not the row data. ...
INSERT INTO mytable VALUES (1,"Donald","Duck","noone@nowhere.com","1234"); INSERT INTO mytable ( contact_id,first_name,last_name,email,phone ) VALUES (2,"Daisy","Duck","daisy@nowhere.com","45678");
-- create a temp table for testing create table #programming (name varchar(10)); -- insert data with duplicate, C++ is repeated 3 times, while Java 2 times insert into #programming values ('Java'); insert into #programming values ('C++'); insert into #programming values ('JavaScript');...
Now we have realized that custid 1, 4 & 5 are duplicate. The self-join statement accompanied by delete statement will give us the desired output of keeping the last duplicate record by eliminating all the previous duplicate records. We will use theCommon Table Expression (CTE)and put the Sel...
CREATE TABLE TestBatch (ColA INT PRIMARY KEY, ColB CHAR(3)); GO INSERT INTO TestBatch VALUES (1, 'aaa'); INSERT INTO TestBatch VALUES (2, 'bbb'); INSERT INTO TestBatch VALUES (1, 'ccc'); -- Duplicate key error. GO SELECT * FROM TestBatch; -- Returns rows 1 and 2...
CREATE TABLE TestBatch (ColA INT PRIMARY KEY, ColB CHAR(3)); GO INSERT INTO TestBatch VALUES (1, 'aaa'); INSERT INTO TestBatch VALUES (2, 'bbb'); INSERT INTO TestBatch VALUES (1, 'ccc'); -- Duplicate key error. GO SELECT * FROM TestBatch; -- Returns rows 1 and 2...
partitionOptions 指定用來從 SQL Server 載入資料的資料分割選項。 允許的值為:None (預設值)、PhysicalPartitionsOfTable 和DynamicRange。啟用分割選項後 (亦即不是 None),從 SQL Server 同時載入資料的平行程度,由複製活動的 parallelCopies 設定所控制。 No partitionSettings 指定資料分割的設定群組。 當分割選項不...
重复的表(DUPLICATE_TABLE) 42712 重复的别名(DUPLICATE_ALIAS) 42710 重复的对象(DUPLICATE_OBJECT) 42702 模糊的字段(AMBIGUOUS_COLUMN) 42725 模糊的函数(AMBIGUOUS_FUNCTION) 42P08 模糊的参数(AMBIGUOUS_PARAMETER) 42P09 模糊的别名(AMBIGUOUS_ALIAS) 42P10 非法字段引用(INVALID_COLUMN_REFERENCE) 42611 非法字段...
要从SQL Server 复制数据,请将复制活动中的源类型设置为 SqlSource。 复制活动的 source 节支持以下属性: 展开表 属性描述必需 type 复制活动 source 节的 type 属性必须设置为 SqlSource。 是 sqlReaderQuery 使用自定义 SQL 查询读取数据。 例如 select * from MyTable。 否 sqlReaderStoredProcedureName 此属...
当你在 SQL Server 中拥有已启用更改跟踪的数据库时,你可能会遇到错误日志中记录的相同 tablename 的连续错误22123,类似于以下情况: 错误:22123,严重性:16,状态:1。更改跟踪 autocleanup 在 "tablename" 的侧面表上被阻止。 如果故障仍然存在,请检...