If you enable partition switching on SQL Server 2008 R2 through the current version, you might also need split and merge operations in near future. Before executing a split or merge operation on a replicated or CDC enabled table ensure that the partition in question does not have a...
这将向test_table中插入 3 条记录,每条记录的name字段为'test_nametest_nametest_nametest_nametest_name',description字段为'test_descriptiontest_descriptiontest_description'。 2.3 动态生成 SQL 语句 有时候,我们需要动态生成 SQL 语句。REPLICATE函数可以帮助我们生成重复的部分。例如,生成一系列列的更新语句: DEC...
有时候,我们需要动态生成 SQL 语句。REPLICATE函数可以帮助我们生成重复的部分。例如,生成一系列列的更新语句: DECLARE@columnsNVARCHAR(MAX)='column1, column2, column3';DECLARE@sqlNVARCHAR(MAX);SET@sql='UPDATE table_name SET '+REPLICATE(@columns+' = ?, ', LEN(@columns)-LEN(REPLACE(@columns,',',...
SQL IF EXISTS(SELECTnameFROMsys.tablesWHEREname='t1')DROPTABLEt1; GOCREATETABLEt1 ( c1varchar(3), c2char(3) ); GOINSERTINTOt1VALUES('2','2'), ('37','37'),('597','597'); GOSELECTREPLICATE('0',3-DATALENGTH(c1)) + c1AS'Varchar Column',REPLICATE('0',3-DATALENGTH(c2)) + c2...
SQL 複製 IF EXISTS(SELECT name FROM sys.tables WHERE name = 't1') DROP TABLE t1; GO CREATE TABLE t1 ( c1 varchar(3), c2 char(3) ); GO INSERT INTO t1 VALUES ('2', '2'), ('37', '37'),('597', '597'); GO SELECT REPLICATE('0', 3 - DATALENGTH(c1)) + c1 AS 'Varch...
SQL Kopieren IF EXISTS(SELECT name FROM sys.tables WHERE name = 't1') DROP TABLE t1; GO CREATE TABLE t1 ( c1 varchar(3), c2 char(3) ); GO INSERT INTO t1 VALUES ('2', '2'), ('37', '37'),('597', '597'); GO SELECT REPLICATE('0', 3 - DATALENGTH(c1)) + c1 AS '...
但是在Microsoft SQL Server 2008 R2 (RTM) 中,该参数更改有问题。当把参数改为False时,架构更改是不会同步了;但是再把参数改回True时,发现结构更改也还是不同步。怀疑是bug,没有找到相关文档说明这个问题,于是自己下载 Microsoft® SQL Server® 2008 R2 Service Pack 3 更新试试看。安装SP3...
SQL Copy IF EXISTS(SELECT name FROM sys.tables WHERE name = 't1') DROP TABLE t1; GO CREATE TABLE t1 ( c1 varchar(3), c2 char(3) ); GO INSERT INTO t1 VALUES ('2', '2'), ('37', '37'),('597', '597'); GO SELECT REPLICATE('0', 3 - DATALENGTH(c1)) + c1 AS 'Varch...
SQL IF EXISTS(SELECTnameFROMsys.tablesWHEREname='t1')DROPTABLEt1; GOCREATETABLEt1 ( c1varchar(3), c2char(3) ); GOINSERTINTOt1VALUES('2','2'), ('37','37'),('597','597'); GOSELECTREPLICATE('0',3-DATALENGTH(c1)) + c1AS'Varchar Column',REPLICATE('0',3-DATALENGTH(c2)) + c2...
Replication Server supports Microsoft SQL Server large value data types as user-defined datatypes (UDDs) in the table-level replication environment. Replication Server also supports database-level replication for new Microsoft SQL Server large value data types. The Microsoft SQL Server large value data...