cn.CommandText=CommandType.Text //CommandType.Text表示执行SQL语句,是默认值,CommandType.StoredProcedure 表示执行存储过程 SqlCommand cmd=new SqlCommand(querySql,cn); //cmd.ExecuteNonQuery(); //用于执行增、删、改 //ExecuteScalar返回一个Object类型的值,用于执行带有聚合函数的SQL语句,比如COUNT、AVG。 //Exe...
Execute the following SQL statement to query the minimum and maximum values of the cpu.usage_system measurement from each server. The values are generated within 1 minute from 2019-03-01 00:00:00 to 2019-03-01 00:01:00. select hostname, min(`value`) as minV, max(`value`) as maxV...
SELECT CONCAT(1,'/',5,'a') --query success: 1/5a SELECT 1+'a' --execute fail 1. 2. 2.6.2 SUBSTRING 函数 SUBSTRING(string, start, length) 在sql中,string字符串下标从1开始算起,而不是0。 SELECT SUBSTRING('ABCD',1,2) --AB 1. 2.6.3 LEFT 和 RIGHT函数 LEFT(string, n),RIGHT(s...
Dynamically execute string as code in C# dynamically generate data on combo box in C# Dynamically Insert CSV to SQL Server Dynamically making a property Read-Only in a Property Grid. Dynamically Update Sql Table From C# Easy way to check if a value is in an enum? ECEF to Lat/Lon Edit a...
EXEC sp_executesql @SQL, @Paramlist, @XML=@XML OUTPUT SET @XMLString = CAST(@XML AS VARCHAR(MAX)) DECLARE @JSON VARCHAR(MAX) DECLARE @Row VARCHAR(MAX) DECLARE @RowStart INT DECLARE @RowEnd INT DECLARE @FieldStart INT DECLARE @FieldEnd INT ...
concatenating in the string and passing parameters with sp_executesql Concatenating inside EXEC Condition query to parameter only if parameter has "usable" value? CONDITIONAL failed because the following SET options have incorrect settings: 'ANSI_PADDING'. V Conditional If in Where Clause Conditional ...
4) Also,I added an useful information, about how much the execution took, connection time, execution time and ConnectionID, etc..
An advantage of this update pattern is that you can easily test what you’re going to update. Simply put a SELECT * before the FROM clause and execute the query to see the result set: If the query becomes more complex, you might want to use a CTE for clarity. This is the same quer...
SET @SQL = @SQL + 'AS ( ' SET @SQL = @SQL + @ParameterSQL+ ' FOR XML RAW, TYPE, ELEMENTS ' SET @SQL = @SQL + ') ' SET @SQL = @SQL + 'SELECT @XML = XMLString FROM PrepareTable ' EXEC sp_executesql @SQL, @Paramlist, @XML=@XML OUTPUT SET @XMLString = CAST...
--Create a contained database user on a user database mapped to a user-assigned managed identity (UMI)CREATEUSER[job-agent-UMI]FROMEXTERNALPROVIDER;-- Grant permissions as necessary to execute your jobs. For example, ALTER and CREATE TABLE:GRANTALTERONSCHEMA::dboTOjobuser;GRANTCREATETABLETOjob...