Causes of the Error :
- Column Length Exceeded: The most straightforward cause is that the data being inserted is longer than the column's defined length. For example, if a column is defined as VARCHAR(10) and you attempt to insert a string of 15 characters, this error will occur.
- Implicit Conversions: Sometimes, implicit conversions can lead to this error. For instance, if you are inserting a string into a column that expects a different data type, SQL Server may attempt to convert the data, which can result in truncation.
- Data Type Mismatch: If you are trying to insert data into a column with a different data type, SQL Server may truncate the data to fit the target column's data type.
- Triggers: If there are triggers on the table that modify the data being inserted or updated, they may inadvertently cause the data to exceed the column limits.
- Stored Procedures: When using stored procedures, if the parameters defined in the procedure do not match the expected lengths of the columns in the table, this error can arise.
For Example :
Let's understand : I have a table named "CompanyMaster" where Column CompanyCode , column length is varchar(10) , and I am trying to Insert more than 10 characters , In that case , "String or Binary Data would be truncated" error occurs :
First See the column's length :
Now write a query to insert data into CompanyMaster Table to see the error :
In this type error : need to check table's every column's length and passing data length if table's column length less than Inserting data to column's you will see this type error:
you can avoid this error by Increase Column Size: If the data you need to insert legitimately exceeds the current column size, consider altering the column definition to accommodate larger data. For example: