SQL Server 2014 (12.x): schema changes are not supported. To change the definition of a memory-optimized table or natively compiled stored procedure, first drop the object and then recreate it with the desired definition. OperationTRUNCATE TABLEThe TRUNCATE operation is not supported for memory-...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Memory-optimized tables, natively compiled stored procedures, and user-defined functions do not support the full Transact-SQL surface area that is supported by disk-based tables, interpreted Transact-SQL stored procedures, and user...
A file named.tsqllintrcin the same local directory in which TSQLLint is executing A file named.tsqllintrcin the user's home directory Rule configuration TSQLLint rules may be set to "off", "warning", or "error". Rules that are violated and are set to "error" will result in TSQL...
1publicoverrideT[] Rent(intminimumLength)2{3if(minimumLength ==0){returnArray.Empty<T>(); }4T[]?buffer;5intindex =Utilities.SelectBucketIndex(minimumLength);6if(index <_buckets.Length)7{8constintMaxBucketsToTry =2;9inti =index;10do11{12buffer =_buckets[i].Rent();13if(buffer !=nul...
可以使用实体 SQL 语句或 LINQ 查询创建查询本身,也可以使用类中包含的查询生成器方法以增量方式生成查询本身。 在每种情况下,结果都是一个新的 ObjectQuery<T> 实例,在显式执行或枚举后,会将查询发送到数据源以执行并返回结果。ObjectQuery<T> 通常为实体类型,但它也可以是 DbDataRecord 类型、对匿名类型或基元...
The first time the recursive member is invoked, the previous step is the result returned by the anchor member. The second time it is invoked, the previous step is the result returned by the first invocation of the recursive member, and so on until the recursive member returns an empty set...
If not specified, the database is assigned the default collation of the instance of SQL Server. A collation name cannot be specified on a database snapshot. A collation name cannot be specified with the FOR ATTACH or FOR ATTACH_REBUILD_LOG clauses. For inf...
使用数据库日志找到的程序查询sql在数据库进行查询发现无数据返回,通过定位发现是由于TENANT_ID_ = '' or TENANT_ID_ is null此条件导致。 4.3、查询数据库参数配置 show ora_input_emptystr_isnull ; ORA_INPUT_EMPTYSTR_ISNULL --- on (1 row) --此参数作用是对...
A null value is treated as an empty string. %I treats the argument value as an SQL identifier and double-quotes it if necessary. It is an error for the value to be null. The following example runs a DDL command. DO $$DECLARE BEGIN EXECUTE 'CREATE TABLE numbers...
aSQL doesn't allow inserting a completely empty row, so if initial Values is empty this column will explicitly be assigned a NULL value SQL不准许插入完全地空的列,因此,如果原始价值是空的这个专栏将明确地被赋予一个空值[translate]