postgres create table example

1. create table [schema.] table (column datatype [, column datatype]…) [TABLESPACE tablespace] [PCTFREE integer] [PCTUSED integer] [INITRANS integer] [MAXTRANS integer] [STORAGE storage-clause] [LOGGING | NOLOGGING] [CACHE | NOCACHE]; note :? Schema: what is the solution name (user name) of the table )?

Example of creating a oraclexe table spaceSqlplus/nologConnect SYS as SYSDBASql>Create Tablespace OPFOCNDataFile ' c:\\oraclexe\\app\\oracle\\oradata\\pf\\opfo.dbf ' size 1024mAutoextend on next 1m maxsize 3000mExtent Management LocalSegment Space management auto;The tablespace has been created.The detailed syntax is explained below:Tablespace created

upper limit not included in the partition. Any record with the partition key value equal to or greater than the upper limit will be added to the next higher partition. 2. All partitions except the first partition have an implicit lower limit. This value is the upper limit of the previous partition. 3. MAXVALUE is defined in the highest partition. MAXVALUE indicates an uncertain value. This VALUE is higher than the VALUE of any partition key in other partitions. It can also be understood as a VA

limit not included in the partition. Any record with the partition key value equal to or greater than the upper limit will be added to the next higher partition. 2. All partitions except the first partition have an implicit lower limit. This value is the upper limit of the previous partition. 3. MAXVALUE is defined in the highest partition. MAXVALUE indicates an uncertain value. This VALUE is higher than the VALUE of any partition key in other partitions. It can also be understood as a VALUE hi

This article briefly introduces some basic and powerful DOM1.0 methods and how to use them in JavaScript. You can learn how to dynamically create, retrieve, control, and delete HTML elements. Introduction This article briefly introduces some basic and powerful methods for DOM 1.0 and how to use them in JavaScript. You can learn how to dynamically create, retrieve, control, and delete HTML elements. These DO

The example of this article describes the search sort method of Cgridview association table in Yii. Share to everyone for your reference. The implementation methods are as follows: The implementation method of search sort in Yii Cgridview Association table A little complicated, today I saw a foreigner wrote a game, I would like to tidy up and share with you frie

/*!50100 PARTITION by RANGE (ID)(PARTITION p0 VALUES less THAN (8) ENGINE = MyISAM) * * *; A range partition is a partition by range (ID) that stores data by ID 1-7 in a p0 partition, and if the ID is greater than 7, the data cannot be written because there is no corresponding data partition to store;So when you create partitions, you need to use the Maxvalues keyword. The code is as follows Copy Code PARTITION b

partition scheme is not configured for the first time to improve the efficiency of common queries. The query involving aggregate functions such as SUM () and COUNT () can be easily processed in parallel. A simple example of this query is "SELECT salesperson_id, COUNT (orders) as order_total FROM sales group by salesperson_id ;". Through "parallel", this means that the query can be performed on each partition at the same time, and the final result is

), variable length, can hold photos, files, etc. int, integer field. Example: Userage int float, floating-point data is approximate. Example: Userresults float, the approximate numeric data type used to represent floating-point numeric data. datetime, Date type. Example: Createdatetime datetime Bit, Boolean type. Can be set to True is male, false

column type field name 2 column type [properties] [index], ... field name n column type [properties] [index] #每个字段的属性和索引都是可选的, set as needed ] [table type] [table character set]; #在创建表时也可以指定可选的表类型和字符集的设置 where "[]" is optional, a table can consist of one or more fields (columns), and be sure to indicate the data type of the field after the fie

: cell_tch.csv" of del method p (1, 2) messages "1" insert into db2admin. cell_tch (cellid, freq ); Import from "c: test.csv" of del method p (1, 2, 3, 4, 5) messages "1" insert into db2admin. test (keynum, cellid, latitude, longpolling, rxev ); Import from "c: antenna.csv" of del method p (1, 2, 3, 4, 5, 6, 7, 8) messages "1" insert into db2admin. antenna (cellid, antennahigh, halfpangle, maxattenuation, gain, anttilt, pt, mspwr ); Import from "c: neighbor.csv" of del method p (1, 2, 3, 4) m

attributes of the data source. It consists of a series of substrings. Each substrings must end with a "/0 ". The most important attribute is "DSN = Data Source Name". Other attributes include the default directory and driver version information. In the above example, The FoxPro 2.5 version is used, so the driverid should be 280. Correspondingly, the driverid OF FoxPro 2.6 is 536, and that of FoxPro 2.0 is 24. If you do not know how to set the fourth

Mysql learning 2 -- CREATE a data TABLE in Mysql, CREATE a data TABLE using the SQL statement CREATE TABLE: CREATE TABLE Name (attribute nam

efficiency of common queries.· The query involving Aggregate functions such as SUM () and COUNT () can be easily processed in parallel. A simple example of this query is "SELECT salesperson_id, COUNT (orders) as order_total FROM sales group by salesperson_id ;". Through "Parallel", this means that the query can be performed on each partition at the same time, and the final result is only obtained through the total of all partitions.· Data query is di

), variable length, can hold photos, files, etc. int, integer field. Example: Userage int float, floating-point data is approximate. Example: Userresults float, the approximate numeric data type used to represent floating-point numeric data. datetime, Date type. Example: Createdatetime datetime Bit, Boolean type. Can be set to True is male, false

IntroductionThis article briefly introduces some basic and powerful methods for DOM 1.0 and how to use them in JavaScript. You can learn how to dynamically create, retrieve, control, and delete HTML elements. These DOM methods also apply to XML. All browsers that fully support DOM 1.0 can run this example well, such as IE5 and Firefox.Overview-Sample1.htmlThis article introduces DOM through the instance cod