cobol numeric data types

The field type in the database corresponds to the data type in C #: Database C # programint int32Text stringbigint Int64Binary system.byte[]Bit BooleanChar stringDateTime System.DateTimeDecimal System.DecimalFloat System.DoubleImage system.byte[]Money System.DecimalNCHAR Stringntext StringNumeric System.Decimalnvarchar StringReal System.Singlesmalldatetime System.DateTimesmallint Int16SmallMoney System.DecimalTimestamp System.DateTimetinyint System.By

' | | String (False): ' False 'Boolean ()Boolean (undefined): falseBoolean (NULL): FalseBoolean (non-empty object includes empty array [] and empty Object {}): TrueBoolean (not 0): true | | Boolean (0 and Nan): falseBoolean (non-empty including space string): true | | Boolean ("): false[Note that]true is not necessarily equal to 1,false nor necessarily equal to 0Method of wrapper Type inheritanceValueOf (): Returns the base type value TRUE or FalseToString () and toLocaleString (): Returns the

How to Learn the data types and table field constraint types supported by MySQL, MySQL Data (field) TypeWhen creating a table, you must clearly define the data type corresponding to the field. MySQL data

n characters space, and varchar will only occupy the actual character should occupy +1 of the space, and the actual space +13. After the n setting of char and varchar is exceeded, the string is truncated.The upper limit of 4.char is 255 bytes, the upper bound of varchar is 65535 bytes, and the text is capped at 65535.5.char will truncate the trailing spaces when stored, varchar and text will not.6.varchar uses 1-3 bytes to store the length, text does not.

SQL Server C # Shorthand bigint System.Int64 Long tinyint System.Byte Byte Binary (50) System.byte[] Byte[] Image System.byte[] Byte[] varbinary (50) System.byte[] Byte[] Timestamp System.byte[] Byte[] Bit System.Boolean bool CHAR (10) System.String String NCHAR (10) Syst

storing numeric data that is often scoped to a specific range. This data type occupies 2 bytes of space in the database.Note: If the tinyint type is too monotonous to meet your needs, you can consider using the smallint type because this type is relatively safe and does not accept embedding of malicious script content.the int int

Character type of numeric type: Computer processing of information in addition to numbers, mainly characters, characters include numeric characters, English character, expression symbols, and so on; C # provides character types in accordance with internationally accepted standards, using the Unicode character set, a standard Unicode character length of 16 bits,

time data includes "4/01/98 12:15:00:00:00 PM" and "1:28:29:15:01am 8/17/98". The previous data type is the date before, the time in the last data type is a moment before, and the date in the back. In Microsoft SQL Server, date and time data types include datetime and small

illustrates the required storage space.Table 1-1 Data type Description Storage space Char (N) n is between 1~8000 characters N bytes Nchar (N) n is between 1~4000 Unicode characters (2n bytes) + 2 wordsExtra cost of knots Ntext Up to 230–1(1?073?741?823) Unicode characters 2 bytes per character Nvarchar (max) Up to 230–1(1?073?741?823) U

[Machine Learning] data preprocessing: converting data of different types into numerical values and preprocessing Data Conversion Before performing python data analysis, you must first perform data preprocessing. Sometimes I have