s myquery(4) = "ORDER BY $PIECE(Name,',',?)" s tStatement = ##class(%SQL.Statement).%New() s qStatus = tStatement.%Prepare(.myquery) if qStatus '= 1 { w "%Prepare failed:" d $System.Status.DisplayError(qStatus) q } s rset = tStatement.%Execute(10,60,2) d rset.%Di...
ORDER BY and CASE ORDER BY和长全局引用 第六十四章 SQL命令 ORDER BY(二) 示例 下面的示例按照RowID的反向顺序对记录进行排序: SELECT %ID,Name FROM Sample.Person ORDER BY %ID DESC 1. 2. 3. 下面两个示例展示了在ORDER BY子句中指定排序列的不同方法。 下面两个查询是等价的; 第一种方法使用列...
1、GROUP BY、ORDER BY、CLUSTER BY、SORT BY、LIMIT语法及示例 1)、语法 [WITHCommonTableExpression(,CommonTableExpression)*]SELECT[ALL|DISTINCT]select_expr,select_expr,...FROMtable_reference[WHEREwhere_condition][GROUPBYcol_list][ORDERBYcol_list][CLUSTERBYcol_list|[DISTRIBUTEBYcol_list][SORTBYcol_...
将SQL的CASE用于大量条件是一种常见的做法,它可以在查询中根据不同的条件返回不同的结果。然而,当条件数量较大时,使用CASE语句可能会导致查询语句变得冗长且难以维护。在这种情况下,可以考虑使用其他...
ORDER BY 子句在檢視中無效,CREATE TABLE AS SELECT,INSERT SELECT, 內嵌函式、衍生數據表、子查詢和通用數據表表達式、 除非同時指定 TOP 或 FOR XML。 原因 發生此問題是因為語句的排序作業無效INSERT ... SELECT。 這是原本設計的做法。 解決方案
In aSELECT TOP (<n>)statement, always use anORDER BYclause. This is the only way to predictably indicate which rows are affected byTOP. For more information, seeTOP. Interoperability When used with aSELECT...INTOorINSERT...SELECTstatement to insert rows from another source, theORDER BYclause...
In aSELECT TOP (<n>)statement, always use anORDER BYclause. This is the only way to predictably indicate which rows are affected byTOP. For more information, seeTOP. Interoperability When used with aSELECT...INTOorINSERT...SELECTstatement to insert rows from another source, theORDER BYclause...
SqlServer.TransactSql.ScriptDom AbortAfterWaitType AcceleratedDatabaseRecoveryDatabaseOption AddAlterFullTextIndexAction AddFileSpec AddMemberAlterRoleAction AddSearchPropertyListAction AddSensitivityClassificationStatement AddSignatureStatement AdHocDataSource AdHocTableReference AffinityKind AlgorithmKeyOption Al...
OrderbyBirthDateDESC Example 3: Sort results by column positions in a Select statement using SQL Order By clause In previous examples, we specified the column name in Order by clause to sort results in ascending or descending order. We can also specify column position in Order by clause. ...
不，这是不可能的。sql表表示无序的行集合。在没有明确的order by在查询中，数据库可以自由地按它...