jl_source_code = ‘APM’ THEN( SELECT a_vendor_name FROM ap_vendor INNER JOIN pa_journal_detail ON pa_journal_detail.jl_ref1 = ap_vendor.a_vendor_number) ELSE 0 END as a_vendor_name, * FROM pa_journal_detail 以下
问If/Else语句在T-SQL中返回select查询EN1、SQL的组成： ①DML：数据操纵语句 select、insert、delete、...
SELECT @ID = CASE @contacttype WHEN 'Broker' THEN s.BrokerID WHEN 'FundAcct' THEN s.FundAccountantID' WHEN 'Custodian' THEN s.CustodianID ELSE NULL END FROM ... (rest of statement) - Craig Farrell Never stop learning, even if it hurts. Ego bruises are practically mandatory as you lea...
TOP选项是一个专有的T-SQL功能,用于限制查询返回的行数或行的百分比。 SELECT TOP (1) PERCENT orderid, orderdate, custid, empid FROM Sales.Orders ORDER BY orderdate DESC; 2 OFFSET-FETCH筛选 TOP选项不是标准SQL,且不支持跳过功能,OFFSET-FETCH是标准SQL,SQL Server2012时引入。 SELECT orderid, orderd...
SQL Server 2008以后,表参数是可以用的。 例子: 首先,在新数据库MyDemo中创建新表 1: --创建新表 2: use MyDemo 3: CREATE TABLE [dbo].[Employees]( 4: [empid] [int] IDENTITY(1,1) NOT NULL, 5: [empname] [nvarchar](100) NULL, ...
问使用select在何处/具有条件和复合主键的T-SQL太昂贵的查询EN问题是，我找不到一种有效的方式来“...
Boolean_expression: 返回 TRUE 或 FALSE 的表达式。如果布尔表达式中含有SELECT 语句,则必须用括号将SELECT 语句括起来。 {sql_statement | statement_block }:任何 Transact-SQL 语句或用语句块定义的语句分组。除非使用语句块,否则IF 或 ELSE 条件只能影响一个 Transact-SQL 语句的性能。若要定义语句块,请使用控制...
derived_table 可以使用 Transact-SQL 資料表值建構函式功能來指定多個資料列。 例如: SELECT * FROM (VALUES (1, 2), (3, 4), (5, 6), (7, 8), (9, 10) ) AS MyTable(a, b);。 如需詳細資訊,請參閱資料表值建構函式 (Transact-SQL)。 column_alias 取代衍生資料表結果集中資料行名稱的選...
The SET HADR clause of the ALTER DATABASE statement Backup Azure SQL Managed Instance has automatic backups, so users can create full database COPY_ONLY backups. Differential, log, and file snapshot backups aren't supported. With a SQL Managed Instance, you can back up an instance databa...
"SELECT INTO" with indexes? "Simple" SQL to check for alpha or numeric charcters isn't working right "String or binary data would be truncated.\r\nThe statement has been terminated." "String or binary data would be truncated" and field specifications “Unable to enlist in the transaction”...