![]() If running Oracle Database 12 c - Select an identity option for NUMBER and FLOAT columns. Not Null - To specify a column must always have a value, select the Not Null check box. For example, if a column type TIMESTAMP has a scale of 3, seconds are between. For TIMESTAMP types, scale is the fractional seconds precision and must be a number between 0 and 9. For VARCHAR2 and CHAR types, scale is the number of stored characters. For NUMBER types, scale is the number of digits after the decimal point. Scale - The function of the scale setting depends on the column type. For example, if a column of type NUMBER has precision of 4, the column value can be 0 through 9999. Only NUMBER, FLOAT, INTERVAL YEAR TO MONTH, and INTERVAL DAY TO SECOND have this setting. Precision - The precision is the number of digits before the decimal point.
0 Comments
Leave a Reply. |