WHEREcondition(s) ORDERBYcolumnASC/DESC; 3.3 通过Limit选取部分结果 LIMIT和OFFSET子句通常和ORDER BY语句一起使用,当我们对整个结果集排序之后,我们可以LIMIT来指定只返回多少行结果 ,用OFFSET来指定从哪一行开始返回(不包括OFFSET指的这一行) 注意:LIMIT和OFFSET一般在SQL的其他部分都执行完之后,再执行。 1 2 3...
VALUES DUMP OPTION VARYING ELSE OR VIEW END ORDER WAITFOR ERRLVL OUTER WHEN ESCAPE OVER WHERE EXCEPT PERCENT WHILE EXEC PIVOT WITH EXECUTE PLAN WRITETEXT 此外,ISO 标准定义了保留关键字列表。不要使用 ISO 保留关键字作为对象名和标识符。ODBC 保留关键字列表(如下表所示)与 ISO 保留关键字列表相同。
create tableifnot existsdwd_category_by_day(`i_category`string,`cate_sales`double,`cayehory_day_order_cnt`bigint)partitionedby(`year`bigint,`day`bigint)TBLPROPERTIES('sink.partition-commit.policy.kind'='metastore,success-file');--创建源表settable.sql-dialect=default;create tableifnot existss...
SQL20267N 函數function-name(特定的 specific-name)會修改 SQL 資料,且是在不合法的環境定義中呼叫。原因碼 = reason-code。 解說 具有特定名稱 specific-name 的函數 function-name 是以MODIFIES SQL DATA 內容來定義。具有此內容的函數只容許作為 Select 陳述式、共用表格表示式、RETURN 陳述式(是次選取)、...
Rules of precedence for operators in an expression Sorting rows using the ORDER BY clause Substitution variables DEFINE and VERIFY commands 1、Restrict 限制(Where-condition)The essential capabilities of SELECT statement are Selection, Projection and Joining. Displaying specific columns from a table is ...
Because a specific sort order isn't specified, the default (ascending order) is used. SQL Copy USE AdventureWorks2022; GO SELECT ProductID, Name FROM Production.Product WHERE Name LIKE 'Lock Washer%' ORDER BY ProductID; B. Specify a column that isn't defined in the select list The ...
If you use OPTIMIZE FOR @variable_name = <literal_constant> and OPTIMIZE FOR UNKNOWN in the same query hint, the Query Optimizer uses the literal_constant specified for a specific value. The Query Optimizer uses UNKNOWN for the rest of the variable values. The values are used only during qu...
New Transact-SQL syntax isn't gated by database compatibility level, except when they can break existing applications by creating a conflict with user Transact-SQL code. These exceptions are documented in the next sections of this article that outline the differences between...
If you useOPTIMIZE FOR @variable_name = <literal_constant>andOPTIMIZE FOR UNKNOWNin the same query hint, the Query Optimizer uses theliteral_constantspecified for a specific value. The Query Optimizer uses UNKNOWN for the rest of the variable values. The values are used only during query optimi...
Get values of column in sql server enclosed with single quotes using dynamic sql getdate with current date and time 00.00.00.000 Getdate() - 1 day of data extraction in query GetDate() - extracting last 7 days dataset GetDate() + specific time getdate() and getutcdate() GETDATE() ge...