--1、主键id不重复就插入,否则更新insertinto表名称 (字段a, 字段b, ...)values(value_a, value_b, ...)onconflict (主键id) doupdateset...略--2、直接绑定主键名称,主键重复则更新insertinto表名称 (字段a, 字段b, ...)values(value_a, value_b, ...)onconflictonconstraintthis_table_key doup...
INSERT INTO LIVE.TABLE (column1, column2, column3) SELECT DISTINCT ON (cloumn1) column1, column2, column3 FROM STAGE.TABLE ON CONFLICT ON CONSTRAINT live.table.pkey DO NOTHING This works fine however what i am trying to do is to include second constraint in ON CONFLICT ON CONSTRAIN...
--1、主键id不重复就插入,否则更新insertinto表名称 (字段a, 字段b, ...)values(value_a, value_b, ...)onconflict (主键id) doupdateset...略--2、直接绑定主键名称,主键重复则更新insertinto表名称 (字段a, 字段b, ...)values(value_a, value_b, ...)onconflictonconstraintthis_table_key doup...
INSERTINTOt1VALUES(0,1,1,1); 报错信息如下: ERROR: duplicate keyvalueviolatesuniqueconstraint"t1_pkey" DETAIL: Key (a)=(0) already exists. 如果不希望出现上述报错信息,可以使用本文介绍的覆盖写入特性来进行处理: 使用ON CONFLICT DO NOTHING子句:主键冲突的情况下,不执行任何操作(适用于有冲突丢弃冲突数...
通过INSERT ON CONFLICT 来使用 upsert 功能: INSERT INTOtable_name(column_list)VALUES(value_list)ON CONFLICT target action; target 可以是: (column_name):一个字段名 ON CONSTRAINT constraint_name:其中的 constraint_name 可以是一个唯一约束的名字 ...
PostgreSQL , upsert , insert on conflict do 背景 PostgreSQL 9.5 引入了一项新功能,UPSERT(insert on conflict do),当插入遇到约束错误时,直接返回,或者改为执行UPDATE。 语法如下 Command: INSERT Description: create new rows in a table Syntax:
I'm trying to use new Postgresql 9.5 upsert feature. But for some reason my query saying constraint doesn't exist (when it does).My query is thisINSERT INTO journals (ext_ids, title) VALUES ('{"nlmid": "000"}', 'blah') ON CONFLICT ON CONSTRAINT idx_nlmid_journal DO NOTHING; ...
PostgreSQL INSERT ON CONFLICT不存在则插入,存在则更新 1、不存在则插入,存在则更新 insertintotestvalues(1,'test',now())onconflict (id) doupdatesetinfo=excluded.info,crt_time=excluded.crt_time; 执行操作:INSERT01查看结果:select*fromtest;
INSERTINTOt1VALUES(0,1,1,1); 报错信息如下: ERROR: duplicate keyvalueviolatesuniqueconstraint"t1_pkey" DETAIL: Key (a)=(0) already exists. 如果不希望出现上述报错信息,可以使用本文介绍的覆盖写入特性来进行处理: 使用ON CONFLICT DO NOTHING子句:主键冲突的情况下,不执行任何操作(适用于有冲突丢弃冲突数...
--若要从person表往TEST表更新全部记录,不重复插入,重复则更新INSERTINTOTESTselect*frompersononconflictonconstraintpk_test_deviceid_eventtypedoupdatesetupdatetime=excluded.updatetime,msec=excluded.msec; 实践 createtabletest(idintconstraintidx_t_idprimarykey,namevarchar(20)constraintcst_namenotnull);--插入...