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...
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:...
[BUG]: null value in column "XXX" of relation "YYY" violates not-null constraint #2487 Closed trompx opened this issue Jun 10, 2024· 3 comments Closed [BUG]: null value in column "XXX" of relation "YYY" violates not-null constraint #2487 trompx opened this issue Jun 10, 20...
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...
If you want to use the defaults simply don't specify that you want the column value to be null - if you specify null then we take you at your word. This is the same behaviour as SQL. e.g. mutationCreateEvent($name:String!,date:Date!) {createEvent(input: {event: {name:$name,date...
pgsql psycopg2.errors.NotNullViolation: null value in column "id" violates not-null constraint错误解决 网上搜了很多资料,问题出现在一个地方,就是字段问题(integer),改为serial即可。 但是必须重新建表 ,如果不想重新建表,参考(本人没尝试过):https://stackoverflow.com/questions/23578427/changing-primary-...
Then we went the long upgrade path in your docs to now 13.0.4 And I still want to continue the upgrade. My normal tests all went fine and gitlab was working nice. But then I tested to create a new project: PG::NotNullViolation: ERROR: null value in column "id" violates not-null...
這是因為如果值不在包含 NULL的清單中,IN 會傳回 UNKNOWN,並且因為 NOT UNKNOWN 再次符合 UNKNOWN。範例SQL 複製 -- The subquery has only `NULL` value in its result set. Therefore, -- the result of `IN` predicate is UNKNOWN. > SELECT * FROM person WHERE age IN (SELECT null); name age ...
I'm reading data from an Excel file but when in a column I have a null value I get an error, how can I keep reading data and skip the null cell. I want to skip/handle the null reference to the cell in the column and keep reading....