3.402823E38 to -1.401298E-45 for negative values 1.401298E-45 to 3.402823E38 for positive valuesĪny numeric value up to the range of a DoubleĢ2 bytes + string length (24 bytes on 64-bit systems) Each column must have Unique name We can also define Primary Key in a table. A Table is usually related to other tables in the database file. Understanding the precise capabilities of each is important to maintaining network security and ensuring that everyone can access the areas they need to in order to do their job. Table A Table is an object which stores data in Row & Column format to store data. There are many other different types of profiles that offer varying levels of access to computers, servers and network settings. Every field has one datatype like text, number, date, etc. LongPtr (Long integer on 32-bit systems, LongLong integer on 64-bit systems)Ĥ bytes on 32-bit systems 8 bytes on 64-bit systems The following table shows the supported data types, including storage sizes and ranges. Data types include those in the following table as well as user-defined types and specific types of objects. A data type is the characteristic of a variable that determines what kind of data it can hold.
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