String or binary data would be truncated in table 'Record_Company.dbo.bands', column &#039-CodePudding

Below this is what I'm writing. On the last step it is crashing. Thank you for help. I tried what I found for example:

SET ANSI_WARNINGS OFF
INSERT INTO bands (name)
VALUES ('Iron Maiden');
SET ANSI_WARNINGS ON
GO

But it did not work.

CREATE TABLE bands (
    id INT NOT NULL IDENTITY, 
    name NVARCHAR NOT NULL, 
    PRIMARY KEY (id) -
)
CREATE TABLE Albums ( 
    id INT NOT NULL IDENTITY, 
    name NVARCHAR NOT NULL, 
    release_year INT, 
    band_id INT NOT NULL, 
    PRIMARY KEY (id), 
    FOREIGN KEY (band_id) REFERENCES bands(id),
INSERT INTO bands (name)
VALUES ('Iron Maiden');

String or binary data would be truncated in table 'Record_Company.dbo.bands', column 'name'. Truncated value: 'I'.

CodePudding user response：

https://www.sqlservertutorial.net/sql-server-basics/sql-server-nvarchar/

NVARCHAR(n)

Code language: SQL (Structured Query Language) (sql) In this syntax, n defines the string length that ranges from 1 to 4,000. If you don’t specify the string length, its default value is 1.

(emphasis mine)

So your NVARCHAR is interpreted as NVARCHAR(1) which means it can hold a string of only 1 character. Your string "Iron Maiden" is truncated to the first character, "I".