stillcine.blogg.se - Db2 data types list

Teradata Database supports the following categories of data types. For example, when you define a column in a CREATE TABLE statement, you must specify the data type of the column. As you can see most popular data type is VARCHAR - it is used in 2006 columns which is 75.36% of all columns in 106 tables (which 70.19% of all tables). Every data value belongs to an SQL data type. A data type determines the type and size of an variable. A database is a collection of Tables, Schemas, Bufferpools, Logs, Storage groups and Tablespaces working together to handle database operations efficiently. in C++ programming with the help of examples. This chapter describes creating, activating and deactivating the databases with the associated syntax.

Evaluation of predicates, such as LIKE and IN. ii) SMALLINT Data types It is a binary data type integer and the range is -32682+32767. In this tutorial, we will learn about basic data types such as int, float, char, etc. Data type matching and matching of literal values and constants to data types occurs during various database operations, including the following: Data manipulation language (DML) operations on tables. For the bigger number, we can define INTEGER. i) Integer Data types Integer occupies 4 bytes in memory and it has 31 precession and the range for this integer is -21474836482+2147493647.

TIME: It represents the time of the day in hours, minutes and seconds. TIMESTAMP: It represents seven values of. Those results show data types used in GSDB database. In Numeric Data types we have 5 types of Data Types. Built-in data types Datetime TIME: It represents the time of the day in hours, minutes and seconds.

Ordered by number of columns descending.

Scope of rows: all data types used in a database.

percent_tables - percentage of tables with columns with this data type.

tables - number of tables in a database with this data type.

percent_columns - percentage of columns with this data type.

columns - number of columns in a database with this data type You can use the LIST UTILITIES command to monitor backup, restore, and rollforward operations on a database.

data_type - built in or user data type without length or precision, e.g.

On col.tabschema = tab.tabschema and col.tabname = tab.tabname Where type = 'T' and tabschema not like 'SYS%') Query select col.typename as data_type,Ĭount(distinct tab.tabschema concat '.' concat tab.tabname) as tables,Ĭount(distinct tab.tabschema concat '.' concat tab.tabname) / Query below returns data types used in a database ordered by the number of their occurance. The database directory is something many of us use every day.