"violates not-null constraint" 是一个数据库错误,通常在向数据库表中插入或更新记录时发生。这个错误表明你尝试在一个被设置为“NOT NULL”的列中插入或更新了一个NULL值,而该列的定义要求必须有一个非NULL值。简言之,你违反了该列的非空约束。 2. 分析导致“violates not-null constraint”错误的原因 数据...
向表中插入数据报错:null value in column '%s' violates not-null constraint,此处s%指报错的列(字段)名。针对上述案例,表t1中的字段b在建表时,设置了非空(not null)约束,那么字段b中不能有空值。而插入数据时b列为空,则执行报错。针对上述案例,有两种解决方案
针对上述案例,有两种解决方案: 方案一:使用ALTER TABLE删除字段b的非空(not null)约束 ALTER TABLE t1 ALTER COLUMN b DROP NOT NULL; ALTER TABLE INSERT INTO t1 VALUES (1); INSERT 0 1 方案二:保持字段b的非空(not null)约束,字段b不再插入空值 在实际业务中,可根据实际情况选择解决方案。上...
从pgsql中导出sql文件发现是这样: 解决方案: 重新建表(如果出现pk_test_a_id已经存在,改一下即可) create table info_xxx ( id serial, ... , constraint pk_test_a_id primary key(id) );
ERROR: null valueincolumn"name"of relation"res_company"violatesnot-null constraint DETAIL: Failing row contains (26, null, null, null, 10, 2022-05-10 03:21:18.168334, null, null, null, null, null, null, null, 1, null, not_done, Lato, null, null, null, null, 2022-05-10 03:21...
SQLSTATE:23502 (Class 23 — Integrity Constraint Violation: not_null_violation) Urgency:low Example Postgres Log Output: ERROR: null value in column "mycolumn" violates not-null constraint DETAIL: Failing row contains (null). STATEMENT: INSERT INTO "test" ("mycolumn") VALUES ($1) RETURNING ...
Describe the bug When saving a content-type an error is shown. A summary of that is - "null value in column "latitude" violates not-null constraint". Steps to reproduce the behaviour Create a content-type called venue (or something else)...
Related to this issue discussed on the graphql_ppx project: mhallin/graphql_ppx#26 For fields with default values, NULL is sent across rather than DEFAULT or omitting the values. From the postgres log: insert into "events"."event" ( "id"...
I get the following error: PostgresError: null value in column "id" of relation "pairs" violates not-null constraint What confuses me is that in Directus, I have checked 'ON CREATE: Generate and Save UUID,' which is working just fine. Please help me understand how I can get around thi...
从pgsql中导出sql文件发现是这样: 解决方案: 重新建表(如果出现pk_test_a_id已经存在,改一下即可) create table info_xxx ( id serial, ... , constraint pk_test_a_id primary key(id) );