The length of the column name exceeds the display width limit. In SQL*Plus, you can adjust the maximum width of each line using the SET LINESIZE command. If the column name length exceeds this limit, some column names may not be fully displayed.
Column names that contain special characters or spaces may be displayed incorrectly by SQL*Plus, causing the column name to not be fully shown.
There is a limitation on the width of the terminal window. If the width of the terminal window is shorter than the length of the column names, the column names may not be displayed completely.
The SQLPlus version is not compatible. Different versions of SQLPlus may have different limitations and handling methods for displaying column names, which could result in incomplete column name displays when using an older version.
The issue lies in the font settings. If the font settings on the terminal window are incorrect, it may result in incomplete display of column names. Trying to change the font settings on the terminal window can help resolve the issue.
Column names in the database are truncated. If the length of the column names in the database exceeds the limit of the database, the database may automatically truncate them, causing the column names to not be fully displayed. You can check the actual length of the column names by querying the data dictionary view.
