Another commonly used function is theCrossjoin (MDX)function. It returns a set of tuples representing the cartesian product of the sets passed into it as parameters. In practical terms, this function enables you to create 'nested' or 'crosstabbed' axes in queries: SELECT //Returns all of t...
charindex(','+'test'+',',','+Picture+',')>0
其中master.dbo.spt_values 是SQL Server 的内置表,具体作用可以在网络上找到,这里就不详细描述了。 虽然这种方式可以从根本上解决FIND_IN_SET函数的迁移问题,但这种针对这种复杂逻辑,如果时间允许的话,还是迁移到后台服务中好一些。
在SQL Server 中,我们可以使用以下查询来实现相同的功能: 代码语言:txt 复制 SELECT u.* FROM Users u CROSS APPLY STRING_SPLIT(u.Roles, ',') s WHERE s.value = 'admin'; 遇到的问题及解决方法 如果在 SQL Server 中使用FIND_IN_SET的等价实现时遇到性能问题,可以考虑以下几点: ...
SQL 複製 PRINT '*** Setting ANSI_WARNINGS ON'; GO SET ANSI_WARNINGS ON; GO PRINT 'Testing NULL in aggregate'; GO SELECT a, SUM(b) FROM T1 GROUP BY a; GO PRINT 'Testing String Overflow in INSERT'; GO INSERT INTO T1 VALUES (3, 3, 'Text string longer than 20 characters'); GO...
SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) Specifies ISO compliant behavior of the Equals (=) and Not Equal To (<>) comparison operators when they are used withNULLvalues in SQL Server. ...
Learn more about the Microsoft.SqlServer.TransactSql.ScriptDom.FunctionCallSetClause.FunctionCallSetClause in the Microsoft.SqlServer.TransactSql.ScriptDom namespace.
FORCED 適用於 SQL Server 2016 (13.x) SP2 CU14、SQL Server 2017 (14.x) CU21、SQL Server 2019 (15.x) CU6 和更新版本的組建。 注意 查詢存放區無法在 Azure SQL Database 中停用。 執行 ALTER DATABASE [database] SET QUERY_STORE = OFF 會傳回警告 'QUERY_STORE=OFF' is not supported in ...
SQL DELETEdbo.ToolWHEREName='Saw'; GOSELECT*FROMdbo.Tool; GO 尝试插入 3 的显式 ID 值。 SQL INSERTINTOdbo.Tool (ID,Name)VALUES(3,'Garden shovel'); GO 前面的INSERT代码应返回以下错误: 输出 An explicit value for the identity column in table 'AdventureWorks2022.dbo.Tool' can only be speci...
The SQLSetDescRec function sets a variety of fields that affect the data type and buffer bound to a column or parameter (the SQL_DESC_TYPE, SQL_DESC_DATETIME_INTERVAL_CODE, SQL_DESC_OCTET_LENGTH, SQL_DESC_PRECISION, SQL_DESC_SCALE, SQL_DESC_DATA_PTR, SQL_DESC_OCTET_LENGTH_PTR, and ...