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[Reprinted] Cross apply & outer apply

function is "field in Table T1"Select *From table_1 T1Cross join fn_tablevalue (t1.column _) MSG 4104, level 16, state 1, line 1The multi-part identifier "t1.column _ A" cocould not be bound.The last query syntax is incorrect. During cross join, the table value function parameter cannot be a field of table T1. Why cannot this problem be solved? I guess Microsoft didn't add this feature at the time :). After some customers complained about it, Microsoft added cross apply and outer apply to impr

Cross apply and OUTER apply Difference

bound.The syntax of the last query is wrong. In cross join, the parameters of a table-valued function cannot be a field of table T1, so why can't you do that? I guess Microsoft did not add this feature:), and then after the customer complained, so Microsoft added crossapply and outer apply to improve, see cross apply, outer apply example:--4. Cross ApplySELECT *From Table_1 T1Cross apply Fn_tablevalue (t1.column_a)--5. Outer

Use of T-SQL apply

identifier "T1.column_a" could is not bound.The syntax of the last query is wrong. In cross join , the parameters of a table-valued function cannot be a field of table T1, so why can't you do that? I guess Microsoft did not add this feature:), and then after the customer complained, so Microsoft added cross apply and outer apply to improve, see Cross apply, outer Apply Example:-- 4. Cross ApplySELECT * FROM table_1 T1cross apply Fn_tablevalu

Cross apply & outer apply

" cocould not be bound.The last query syntax is incorrect. During cross join, the table value function parameter cannot be a field of table T1. Why cannot this problem be solved? I guess Microsoft didn't add this feature at the time :). After some customers complained about it, Microsoft added cross apply and outer apply to improve it. For details, see cross apply and outer apply: -- 4. Cross applySelect *From table_1 T1Cross apply fn_tablevalue (t1.c

Cross apply and OUTER apply differences

We know that there is a cross join in SQL Server 2000 that is used for interleaving. In fact, adding cross apply and outer apply is used to intersect table-valued functions (functions that return table result sets), and more importantly, the parameters of this function are fields in another table.--OUTER APPLYSELECT *From Table_1 T1Cross apply Fn_tablevalue (t1.column_a)--OUTER APPLYSELECT *From Table_1 T1O

SQL Server table connection (INNER join,left join,right join,full join,cross join,cross apply,outer APPLY)

object_id(N'Fn_tablevalue'N'TF') is not NULLDROP FUNCTIONFn_tablevalueGOCreate functionFn_tablevalue (@id varchar( -))returns @a TABLE(IDint, namevarchar(Ten)NULL) as beginInsert into @aSelect * fromTable2whereId= @idreturnEndGo--Cross ApplySelect * fromtable1 T1 CrossApply (SELECT 1Id'test1'NameUNION All SELECT 2,'test2') T2whereT1.id=t2.idSelect * fromtable1Select * fromtable1 T1 Crossapply Fn_tablevalue (t1.id)--Outer

SQL statement to merge multiple rows of records

varchar (8000)SELECT @ values = isnull (@ values + ',', '') + value FROM tb WHERE id = @ idRETURN @ valuesENDGO-- Call a functionSELECT id, VALUE = dbo. fn_strSum2 (id) FROM tb group by idDrop function dbo. fn_strSum2-- 3 new solution in SQL2005/SQL2008---- 3.1 Use OUTER APPLYSELECT *FROM (select distinct id FROM tb) a outer apply (SELECT [values] = STUFF (REPLACE ((SELECT value FROM tb NWHERE id = A. idFOR XML AUTO), ') N---- 3.2 use XMLSELECT id, [

Database Upgrade ora-04063 DBMS_REGISTRY has error

dba_registry, the following error is reported: select * from dba_registry; ORA-04063: package body "SYS. DBMS_REGISTRY_SYS "has errorsORA-06508: PL/SQL: cocould not find program unit being called:" SYS. DBMS_REGISTRY_SYS "ORA-06512: at line 1The final problem is located at the failure of the DBMS_REGISTRY_SYS package. You can solve the problem by re-running the prvctl. plb Script: SQL> @? /Rdbms/admin/prvctl. plb re-query dba_registry no longer reports an error, and then re-apply psu: SQL> @? /

Jion operations in T-SQL

join: Specifies the cross product of two tables. ReturnBack to the same line-the cross join here is the Cartesian product select St.sno, st.name as Sname, Co.cno, co.name as CName from Students ST Cros s join Course CO--or not specify a connection condition, the query is also Cartesian product select St.sno, st.name as Sname, Co.cno, co.name as CName from S Tudents St, Course co--or cross applyselect St.sno, st.name as Sname, Co.cno, co.name

An interesting SQL Server-level summary data issue

()) as Hierarchyname /* Hierarchy name, tree-shaped structure display */, CAST (Myempname as NVARCHAR) as HierarchyName2 /* Level name 2, horizontal structure display */FROM dbo. Myemp WHERE ParentID is NULL--recursive query UNION all SELECT t.myempid, T.myempname, T.parentid , T2. Myempname, T.hourssalary, CAST (CONCAT (T2. Parenthierarchyindex, T.parentid, ', ') as VARCHAR) as Parenthierarchyindex, CAST (CONCAT (T2. Hierarchyindex,

Database Upgrade ora-04063 Dbms_registry has error

- 01.55.37.411219 PM ROLLBACK 11.2.0.2 NBSP ; 0 PSU patchset 11.2.0.2.005-jun-14 01.58.26.752280 PM ROLLBAC K 11.2.0.2 0 PSU nbsp patchset 11.2.0.2.005-jun-14 01.58.57.774343 PM ROLLBACK NB Sp 11.2.0.2 0 PSU patchset 11.2.0.2. 005-jun-14 02.03.58.934479 PM APPLY 11. 2.0.2 NBSp 0 PSU patchset 11.2.0.2.0Query Dba_registry Direct error: SELECT * from Dba_registry;ora-04063:package body "SYS. Dbms_registry_sys "had Errorsora-06508

Sql,groupby take the first three rows after each group

', ' SQLServer2000 stored procedure with XML programming ', ' 2005-09-01 ' UNION allSELECT ' 009 ', 3, ' Zhao Song ', ' SQLServer2005 system Management Record ', ' 2008-10-01 ' UNION allSELECT ' 010 ', 3, ' Huang Jintao ', ' SQL Technical Handbook ', ' 2006-01-01 '--sql query as follows:--Group by GID, check the last 2 records of date in each group--1. When the field ID is unique:SELECT * from #T as-T where ID in (the Select TOP 2 ID from #T WHERE gid=t.gid ORDER by Date DESC)--2. If the ID is

SQL two forms of apply cross apply and outer apply (reprint)

into table two:Insert intoDbo. OrdersValues(1,'Frndo');Insert intoDbo. OrdersValues(2,'Frndo');Insert intoDbo. OrdersValues(3,'Krlos');Insert intoDbo. OrdersValues(4,'Krlos');Insert intoDbo. OrdersValues(5,'Krlos');Insert intoDbo. OrdersValues(6,'mrphs');Insert intoDbo. OrdersValues(7,NULL);Query the inserted data:Select * from Dbo.ordersResultsExample: Title: Get the latest two orders for each consumer: cross applySelect * from as Cross

Summary of atypical T_sql

(name varchar (10), course varchar (10), fractional int)INSERT into #T2 values (' Zhang San ', ' language ', 74)INSERT into #T2 values (' Zhang San ', ' math ', 83)INSERT into #T2 values (' Zhang San ', ' physics ', 93)INSERT into #T2 values (NULL, ' math ', 50)?---Cross apply---Note that you must have an alias for the table at the endSELECT * FROM #T as aCross Apply (select course, score from #T2 where name =a. Name) b?---outer applySELECT * FROM #T

Common query routines for SQL

procedure with XML programming ', ' 2005-09-01 ' UNION allSELECT ' 009 ', 3, ' Zhao Song ', ' SQLServer2005 system Management Record ', ' 2008-10-01 ' UNION allSELECT ' 010 ', 3, ' Huang Jintao ', ' SQL Technical Handbook ', ' 2006-01-01 '--sql query as follows:--Group by GID, check the last 2 records of date in each group--1. When the field ID is unique:SELECT * from #T as-T where ID in (the Select TOP 2 ID from #T WHERE gid=t.gid ORDER by Date DESC)--2. If the ID is not a momentary:SELECT * f

Database Upgrade ora-04063 Dbms_registry has error

- 01.55.37.411219 PM ROLLBACK 11.2.0.2 NBSP ; 0 PSU patchset 11.2.0.2.005-jun-14 01.58.26.752280 PM ROLLBAC K 11.2.0.2 0 PSU nbsp patchset 11.2.0.2.005-jun-14 01.58.57.774343 PM ROLLBACK NB Sp 11.2.0.2 0 PSU patchset 11.2.0.2. 005-jun-14 02.03.58.934479 PM APPLY 11. 2.0.2 NBSp 0 PSU patchset 11.2.0.2.0Query Dba_registry Direct error: SELECT * from Dba_registry;ora-04063:package body "SYS. Dbms_registry_sys "had Errorsora-06508

Teacher Oracle Handout Fifth day

stored procedure that returns multiple field values for a query resultCreate or replace procedure proc4 (Param1 in Varchar2, param2 out varchar2, param3 out varchar2--in represents input parameter out represents output parameter Param0 in out number)Asparam VARCHAR2 (100);Begin-Note: Only the result set returned for a record can be processed if the result set contains multiple records, Oracle does not provide a way to directly handle-Cursors must be used indirectly, but the cursor itself is ine

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