%INLIST and IN %INLIST和IN谓词都可以用于提供多个值来进行相等比较。 下面的动态SQL示例返回相同的结果: ClassMethod List2() { s states = $lb("VT","NH","ME") s myquery = "SELECT Name,Home_State FROM Sample.Person WHERE Home_State %INLIST ?" s tStatement = ##class(%SQL.Statement)....
/// d ##class(PHA.TEST.SQLCommand).In() ClassMethod In() { s q1 = "SELECT Name,DOB FROM Sample.Person " s q2 = "WHERE DOB IN('1956-03-05','1956-04-08','1956-04-18','1990-04-25')" s myquery = q1_q2 s tStatement = ##class(%SQL.Statement).%New() s tStatement.%Se...
Status.DisplayError(qStatus) q } s rset = tStatement.%Execute(s1,s2,s3) d rset.%Display() } 然而,在动态SQL中,可以提供%INLIST谓词值作为单个主机变量; 必须将IN谓词值作为单独的主机变量提供。 因此,更改IN谓词值的数量将导致创建一个单独的缓存查询。 更改%INLIST谓词值的数量不会导致创建单独的...
partitionsandsubpartitions accept new rows. The PARTITIONoptiontakes a listofthe comma-separated namesofoneormore partitionsorsubpartitions (orboth)ofthetable.Ifanyofthe rowstobe insertedbya givenINSERTstatement donotmatch oneofthe partitions listed, theINSERTstatement failswiththe error Found a rownot...
ClassMethod Predicates2() { s list = $LISTBUILD("MA","VT","NH") s q1 = "SELECT Name,Home_State FROM Sample.Person " s q2 = "WHERE Home_State %INLIST(?)" s myquery = q1 _ q2 s tStatement = ##class(%SQL.Statement).%New() s qStatus = tStatement.%Prepare(myquery) if q...
in 确定给定的值是否与子查询或列表中的值相匹配。in在查询的时候,首先查询子查询的表,然后将内表和外表做一个笛卡尔积,然后按照条件进行筛选。所以相对内表比较小的时候,in的速度较快。 具体sql语句如下: SELECT*FROMuserWHEREuser.idIN(SELECTorder.user_idFROMorder) ...
Syntax of SQL SELECT Statement:SELECT column_list FROM table-name [WHERE Clause] [GROUP BY clause] [HAVING clause] [ORDER BY clause];table-name is the name of the table from which the information is retrieved. column_list includes one or more columns from which data is retrieved. The ...
语句级事件(sql_statement_completed、sql_statement_starting、sp_statement_starting、sp_statement_completed) 登录和注销事件(login、process_login_finish、login_event、logout) 锁定事件(lock_acquired、lock_cancel、lock_released) 等待事件(wait_info、wait_info_external) ...
try{Stringsql="INSERT INTO users (id, age) VALUES (1, 150)";Statementstatement=connection.createStatement();statement.executeUpdate(sql);}catch(SQLIntegrityConstraintViolationExceptione){System.out.println("插入操作失败,违反了检查约束");} 1. ...
网上有不少的地方也提到了这种方法,那就是,先定义一个表类型,将个数不定的参数转换成这种表类型,再将查询结果传给IN子句,这样就可以实现了SQL语句中的绑定变量方式。 例如: Select * From 病人费用记录 Where NO IN(Select * From Table(Cast(zlTools.f_Str2List ('A01,A02,A03') as zlTools. t_StrLi...