How can you edit information in a table using SQL Server?

To edit table information, you can use SQL Server Management Studio (SSMS) or Transact-SQL (T-SQL) statements. The steps for editing table information in SQL Server Management Studio (SSMS) are as follows: 1. Open SQL Server Management Studio (SSMS) and connect to the relevant SQL Server instance. 2. In Object Explorer, locate and expand the database, then expand the “Tables” folder under that database. 3. Find the table you want to edit, right-click on the table, and choose the “Design” option. 4. In the “Table Designer,” you can add, delete, or modify columns, set constraints, identity columns, primary keys, and other properties. 5. After completing the edits to the table, click the save button or press Ctrl + S to save the changes. The steps for editing table information using Transact-SQL (T-SQL) statements are as follows: 1. Open SQL Server Management Studio (SSMS) and connect to the relevant SQL Server instance. 2. Open a new query window and select the database you want to edit. 3. Use the ALTER TABLE statement to modify the table structure, for example: adding a column.

  ALTER TABLE 表名
  ADD 列名 数据类型;

Edit the column:

  ALTER TABLE 表名

  ALTER COLUMN 列名 新数据类型;

Remove column

  ALTER TABLE 表名

  DROP COLUMN 列名;

Add the primary key:

  ALTER TABLE 表名

  ADD CONSTRAINT 主键名称 PRIMARY KEY (列名);

Add a foreign key:

  ALTER TABLE 子表名

  ADD CONSTRAINT 外键名称 FOREIGN KEY (列名)
  REFERENCES 父表名 (列名);

After writing the corresponding T-SQL statement, click the execute button or press F5 to make the changes. Please make sure to back up the appropriate database before editing the table information to prevent data loss.