select a,b from table where a=1 or b=1 if(a=1)return 1 else if(b=1)return 1 end if
SET NOCOUNT ON; IF (@UserName IS NULL) or (@LoginPassword IS NULL) RETURN -1 DECLARE @COUNT int SET @COUNT = 0 BEGIN TRANSACTION -- 验证用户登录密码 DECLARE @UserID int,@UserPassword varchar(50) SELECT @UserID = UserID, @UserPassword = [Password] FROM dbo._5rUsers WHERE (UserName ...
如果此时临时表只有key为1的行不存在key为0的行,那么数据库要将该条记录插入临时表,由于是随机数,插时又要计算一下随机值,此时floor(random(0)*2)结果可能为1,就会导致插入时冲突而报错。
HY009参数值无效(DM) 参数ParameterValuePtr为空指针,参数StrLen_or_IndPtr为 null 指针,参数InputOutputType未SQL_PARAM_OUTPUT。 (DM) SQL_PARAM_OUTPUT,其中参数ParameterValuePtr为 null 指针,C 类型为 char 或 binary,BufferLength (cbValueMax) 大于 0。
return FALSE; retcode = SQLExecute(hstmt); if ( retcode == SQL_ERROR ) return FALSE; // Assume that the retrieved picture exists. Use SQLBindCol or SQLGetData to retrieve the result-set. // Process the result set and move to the streamed output parameters. ...
For optimal performance,SqlDataReaderavoids creating unnecessary objects or making unnecessary copies of data. Therefore, multiple calls to methods such asGetValuereturn a reference to the same object. Use caution if you are modifying the underlying value of the objects returned by methods such asGet...
Package: System.Data.SqlClient v4.9.0 Source: System.Data.SqlClient.notsupported.cs Caution Use the Microsoft.Data.SqlClient package instead. Represents a Transact-SQL statement or stored procedure to execute against a SQL Server database. This class cannot be inherited. C# Copy [System.Obs...
SCALAR_SUBQUERY_IS_IN_GROUP_BY_OR_AGGREGATE_FUNCTION、STAR_GROUP_BY_POS、STREAMING_AQE_NOT_SUPPORTED_FOR_STATEFUL_OPERATORS、STREAMING_FROM_MATERIALIZED_VIEW、STREAMING_REAL_TIME_MODE、ST_NOT_ENABLED、ST_UNSUPPORTED_RETURN_TYPE、TABLE_VALUED_ARGUMENTS_NOT_YET_IMPLEMENTED_FOR_SQL_FUNCTIONS、UC_HIVE_...
Unable to open or validate MSI package H:\xxxxxxx.msi. MSI (s) Note: 1: 2203 2: I:\xxxxxxx.msi 3: -2147287038 MSI (s) Source is incorrect. Unable to open or validate MSI package I:\xxxxxxx.msi. 意外行为可以观察到以下行为之一作为症状:...
Delete Records where total amounts equal 0 delete row or sheet in excel from query Delete statistics option is disabled when you try to delete statistics in sql server Delete top 1000 rows from Table in 2 batches Delete top n rows using join delete with except Deleted Microsoft SQL Server fo...