复制 ERROR:relation"t1"already existsERROR:duplicate key value violates unique constraint"t1_pkey"ERROR:multiple primary keysfortable"t1"are not allowed 2、导入导出的操作 代码语言:javascript 复制 pg_dump-Upostgres-d yzs-Fa-c-C-f all.sql psql<all.sql 3、问题分析 1)通过-c导出时在重建database...
使用pg_dump -c导出后,通过psql导入时报下面的错误: ERROR: relation "t1" already existsERROR: duplicate key value violates unique constraint "t1_pkey"ERROR: multiple primary keys for table "t1" are not allowed 2、导入导出的操作 pg_dump -U postgres -d yzs -Fa -c -C -f all.sqlpsql < al...
Multiple primary keys for table are not allowed The cause of error: There is already a primary key created.Check the primary key or drop the existing primary key. Create table and primary key CREATE TABLE test.products( product_id numeric, product_name varchar(500), category varchar(100), ...
ERROR: multiple primary keys for table "schema_migrations" are not allowed (SQLSTATE 42P16) At statement 48: ALTER TABLE ONLY "supabase_migrations"."schema_migrations" ADD CONSTRAINT "schema_migrations_pkey" PRIMARY KEY ("version") Update remote migration history table? [Y/n]I did answer "Ye...
报错原因：版本不支持，出现问题版本：r0.10.28，r0.10.23。
ActiveRecord::JDBCError: org.postgresql.util.PSQLException: ERROR: multiple primary keys for table "schema_migrations" are not allowed Steps to reproduce When postgres db with jruby is used with rails 5 it causes following problem. However same works well with rails 4.X versions/...
pg_restore: [archiver (db)] could not execute query: ERROR: multiple primary keys for table "t1_p1" are not allowed Command was: -- For binary upgrade, must preserve pg_class oids SELECT pg_catalog.binary_upgrade_set_next_index_pg_class_oid('16394'::pg_catalog.oid); ...
Sometimes, it becomes necessary for organizations to get rid of this key to insert multiple similar values or null values. The table can have more than one primary key. These additional keys are called composite primary keys. To be precise, multiple primary keys are not assigned to columns, ...
The target application allowed customers to place an order and retrieve their order number. Using SQL Server or SQL Azure, it would’ve been easy to generate a simple, numeric, unique identifier, but Azure Table Storage doesn’t offer auto-incrementing primary keys. Instead, developers using...
一、前言 当我使用efcore code first成功生成实体类,然后编写好功能,运行的时候 报了这个错误 System.InvalidOperationException:“The entity type 'Student' has multiple properties with the [Key] attribute. Composite primary keys can only be set using 'HasKey' in 'OnModelCreating'.” ...