postgres=# update tabs set name = 'tony' where id=5 RETURNING id || name AS idName; idname --- 5tony (1 row) postgres=# insert into tabs values(5,'tams') returning *; ERROR: duplicate key value violates unique constraint "tabs_pkey" DETAIL: Key (id)=(5) already exists.编辑于...
在vb.net控制台应用程序(X64)上使用odbc连接器(X64)连接到postgresql数据库时出现问题,错误为 Dim ConnectionString = "Driver={PostgreSQL UNICODE};Server=myPGSrv;Port=5432;Database=dbDefault;Uid=postgres;Pwd=pw;" 'Dim ConnectionString = "ODBC;dsn=PostgreSQL35W" conn = New OdbcConnection(ConnectionSt...
postgres=# select*from decoding_test;x|y---+---12|9101|20--插入时发生主键冲突,执行后面的update语句,将y更新为400,EXCLUDED表示准备要新插入的这一行数据。 postgres=#INSERTINTOdecoding_test(x,y)values(101,400)onconflict(x)doupdatesety=EXCLUDED.y;INSERT01postgres=# select*from decoding_test;x|...
PostgresMain-->exec_simple_query-->PortalRun-->PortalRunMulti-->PortalRunUtility-->Createtablespace -->simple_heap_insert-->heap_insert 再看Createtablespace函数: /** Create a table space * * Only superusers can create a tablespace. This seems a reasonable restriction * since we're determining...
Using an UPSERT statement, you can update a record if it already exists or insert a new record if it does not. This can be done in a single statement. Example Below sample example for usage of INSERT...ON CONFLICT: postgres=#select*fromtab1 ;pid | sales | status...
Calling stored procedure in postgres sql Calling vb.net function from Javascript or HTML Camera Not Working In Mobile Browser Can a DataSource set the default value in a DropDownList (or the list fetch the value from a DataSource)? Can a label text span multiple line? Can anyone tell me ...
1)The use of exists in the Rule syntax is only suitable for a single insert statement (use the volatile function to solve this problem). postgres=# create table e(id int, info text); CREATE TABLE postgres=# create rule r1 as on insert to e where exists (select 1 from e t1 where ...
Simple and Powerful ORM for Go, support mysql,postgres,tidb,sqlite3,mssql,oracle - xorm/session_insert.go at master · giddily/xorm
Report item expressions can only refer to fields within the current data set scope or, if inside an aggregate, the specified data set scope. [Subscription] The delivery extension for this subscription could not be loaded @ExecutionTime date format on email subject? #Error in SSRS Expression #...
st_name varchar(25))" 1New XML feature - output query as xml -P "t" only output rows psql -h someserver -p 5432 -U someuser -d somedb -P "t" -c "SELECT query_to_xml('select * from sometable', false, false, 'sometable')" -o "outputfile.xml"; http://www.postgresonline...