Creates a new column named TEMP containing the value 4.

Creates a new column named TEMP containing the value 0.

Creates a new column named TEMP, where each value is the length of the string in the corresponding row of column V1.

Creates three new columns named TEMP, VX, and VY. The values in the TEMP column are the lengths of the strings in the corresponding rows of column V1, the values of the VX column are the lengths of strings in corresponding rows of column V2, and the values of the VY column are the lengths of the strings in corresponding rows of column V3.

Creates three new columns named TEMP, VX, and VY. The values in the TEMP column are the lengths of the strings in rows 1-50 of column V1, the values of the VX column are the lengths of strings in rows 1-50 of column V2, and the values of the VY column are the lengths of the strings in rows 1-50 of column V3.