Do not do the print work removing the cover of the printer to confirm the operation of driving part. Page 7: Laser Beams 4.4 Laser beams â¢ If your eyes are exposed to laser beams, you may lose your eyesight. â¢ Never open the cover if the warning label for laser beams is attached there.
SQL ALTER TABLE Rename Column Syntax. Sometimes we want to change the name of a column. To do this in SQL, we specify that we want to change the structure of the table using the ALTER TABLE command, followed by a command that tells the relational database that we want to rename the column.o do this in SQL, we specify that we want to change the structure of the table using the ALTER TABLE command, followed by a command that tells the relational database that we want to rename the column.
Column alias. When we design the tables, we often keep the column names short e.g., so_no for sales order number, inv_no for invoice number, etc. Then we use the SELECT statement to query the data from the table, the output is not descriptive. To assign a column a new name in a query, we use the column alias. The column alias is just another name of the alias during the execution of a query. See the following query. 1.