target writing table

Duplicate records in a delete table using MySQLDelete from the user where username in (select the User name form (select username from the user group by username have count (usernam e) (>1));Encounter MySQL error you can ' t specify target table to update in FROM clauseInternet Baidu is the original MySQL is not allowed to select out some values in the same

SELECT from Sys_userResults:The Create_user_uin_tree in the table identifies who created the record.When creating a new user, the following SQL is available based on the UIn of the currently logged on user and the newly created user uin:Select concat (ifnull (Create_user_uin_tree,concat ('_',2,' _ '),'|_', ' a', ' _ ') from where uin=2Results:Then the modified Create_user_uin_tree's identity SQL is:UpdateSys_userSetCreate_user_uin_tree=(SelectConca

Tag: Django dele_id=Fee_details_invoices.objects.filter(fee_detail_id__in=fee_id_list,return_type=‘2‘).values_list(‘fee_detail_id‘,flat=True)Fee_details_invoices.objects.filter(fee_detail_id__in=dele_id).delete() Error: django.db.utils.DatabaseError:(1093,"Youcan‘tspecifytargettable‘fee_details_invoices‘forupdateinFROMclause") Error analysis solution: The first line of code indicates obtaining a field in some condition rows. The second line of code deletes records that contain this field value

MySQL in your can ' t specify target table for update in FROM clause error means that you cannot select some of the values in the same table first, and then update the table (in the same statement). For example, the following SQL:12(3 select max (ID) from TBL A where EXISTS4 (5 Select 1 from

Label:MySQL in your can ' t specify target table for update in FROM clause error means that you cannot select some of the values in the same table first, and then update the table (in the same statement). For example, the following SQL: The code is as follows: Delete from the TBL where ID in ( Select Max (ID) from TBL

Tags: 02055 02049 02063Symptom: 02055 02049 02063 06512 error reported in Target library during stored procedureTroubleshooting process:1. Querying the 110 rows of the stored procedure is just a simple delete action2, through the following SQL statement to find the deadlock, no deadlockSELECT ' alter system kill session ' | | Chr (39) | | l.session_id| | ', ' | | s.serial#| | Chr (39) | | immediate; ', l.session_id sid,s.serial#,l.locked_mode,l.oracle

Mysql error: 1093-You can't specify target table for update in FROM clause solution, please 3-youclause Problems Found Recently, when processing data in some databases, I wrote the following SQL statement: UPDATE f_studentSET school_id = 0WHERE id > ( SELECT id FROM f_student WHERE school_id = M LIMIT 1 )AND id The preceding SQL statement is used to modify the data in a certain interval, but runs in a test

Label:MySQL in your can ' t specify target table The following l:You can circumvent the error by needing to select the result of the search again through the intermediate table select again.As follows:PS: This issue only occurs on Mysql,sql service and Oracle does not occur.MySQL in your can ' t specify target

Tags: Sele style core col ROM statement from code where Delete from student where not in ( Selectmin from Group by name,stuid,subid,subname,score ); When executing this statement in MySQL, an error occurred: You can ' t specify target table ' student ' for update in FROM clause; The reason is that the subquery uses the Student table to query, the outer layer

MySQL in your can ' t specify target table Delete fromTblwhereIdinch ( Select Max(ID) fromTBL Awhere EXISTS ( Select 1 fromTBL BwhereA.tac=B.tacGroup byTac having Count(1)>1 ) Group byTAC)Rewrite it to the following line:Delete fromTblwhereIdinch ( Selecta.ID from ( Select Max(ID) ID fromTBL Awhere EXISTS ( Select 1 fromTBL BwhereA

Unlike Oracle and Sqlserver,mysql, which do not support querying the data of a table and querying for the updated condition, we need to use the following statement bypass:UPDATETeaching_departmentSETCode_year= ., Notice_code=(SELECTA.code+ 1 from(SELECT MAX(Notice_code) Code fromTeaching_departmentWHEREdepartment_id= 6284 andCode_year= .AWHEREId= 106;Local tests are passed, but when you go up to the test environment, you will still see the followi

MySQL in the can ' t specify target table for update in the FROM clause error means that you cannot select some of the values in the same table first, and then update the table (in the same statement). For example, the following SQL: Copy Code code as follows: Delete from tbl where ID in ( Select Max

Label: UPDATEBpm_tksign_dataSETIsCompleted= 1 WHEREActinstid= '10000002433415' andNodeid= 'SignTask1' andIsCompleted= 0 andBatch= ( SELECT Max(A.batch) m fromBpm_tksign_data aWHEREA.actinstid= '10000002433415' andA.nodeid= 'SignTask1' ); This type of writing, MySQL versions are not supported. UPDATEBpm_tksign_dataSETIsCompleted= 1 WHEREActinstid= '10000002433415' andNodeid= 'SignTask1' andIsCompleted= 0 andBatch= ( SELECT

1 　　　　　　 /// 2 ///get all database names for the target server3 /// 4 /// 5 /// 6 /// 7 Public voidGetdatabasenamelist (stringServerName,stringUserName,stringpassword)8 {9SQLDMO. Application Sqlapplication =NewSQLDMO. ApplicationClass ();TenSQLDMO. SQL Server SQL Server =NewSQLDMO. Sqlserverclass (); One ASqlserver.connect (serverName, userName, password);//connecting to a server -

Translation: MySQL cannot specify the updated target table in the FROM clauseSOURCE SQL statement:[SQL]View PlainCopyprint? Delete from t_official_sys_user where user_name in (SELECT user_name from t_official_sys_user b Group by b. ' User_name ' Having count (1) > 1) The following error was reported:[SQL]View PlainCopyprint? [SQL] Delete from t_official_sys_user where use

The database has two fields in the wrong position, you want to change them. Because there is no database write permission, it needs to be implemented with SQL statements. Originally thought to be simpleUpdate table A set a. Field a= (select B field from table where id=?), set a. Field b= (Select a field from table where id=?) where id=? , and the results reported

Tags: ble strong recommended Work nav char text href windowStart delving into the work flow of something, the first nail, notes: Error message: jBPM4.4 no JBPM DB schema:no jbpm4_execution table. Run the Create.jbpm.schema target first in the Install tool. Analysis: JBPM The Create statement error when initializing the table, as follows: CREATE

Tags: User statement for BSP Modify use UPD errorWhen you do address management, you need to set the other address of the user to be non-default based on the user you want to set as the default address. Need to select the user ID and update Original statement Update address Set Isdeafult = 0 where user_id = (select user_id from address where id =?) Error--can ' t specify target table ' address ' for update

MySQL in the can ' t specify target table for update in the FROM clause error means that you cannot select some of the values in the same table first, and then update the table (in the same statement). For example, the following SQL:The code is as follows: Delete from tbl where ID in ( select Max (ID) from TBL a

Incorrectly, you cannot select some values from the same table first, and then update the table (in the same statement). For example, the following SQL:Delete from the TBL where ID in(Select Max (ID) from TBL a where EXISTS(Select 1 from the TBL B where A.tac=b.tac GROUP by TAC has count (1) >1)Group BY TAC)Rewrite it to the following line:Delete from the TBL where ID in(Select a.ID from(Select MAX (ID) ID