Oid oid;/* oid *//* Language name */NameData lanname;/* Language's owner */Oid lanownerBKI_DEFAULT(PGUID);/* Is a procedural language */bool lanisplBKI_DEFAULT(f);/* PL is trusted */bool lanpltrustedBKI_DEFAULT(f);/* Call handler, if it's a PL */Oid lanplcallfoidBKI_DEFAU...
CREATE FUNCTION defines a new function. CREATE OR REPLACE FUNCTION will either create a new function, or replace an existing definition. To be able to define a function, the user must have the USAGE privilege on the language. If a schema name is...
Only the functions compatible with PostgreSQL or those with thePACKAGEattribute can be overloaded. AfterREPLACEis specified, a new function is created instead of replacing a function if the number of parameters, parameter type, or return value is different. You can use theSELECTstatement to specify...
Creates a function.If the parameters or return values of a function have precision, the precision is not checked.When creating a function, you are advised to explicitly s
In PostgreSQL, the database objects are created using the CREATE command. In this write-up, we will discuss how to use the Postgres “CREATE” command for Table, View, Sequence, INDEX, Function, and Tablespace Creation. Case 1: Use the CREATE Command For Table Creation ...
PostgreSQL ... CREATE DATABASE - 创建一个新数据库CREATE FUNCTION-定义一个新函数CREATE GROUP - 创建一 … pgsqldb.org|基于21个网页 3. 创建用户定义函数 SQL Server常用语句 -... ... DROP DEFAULT 删除默认值。CREATE FUNCTION创建用户定义函数。 DROP FUNCTION 删… ...
In PostgreSQL 9.1, this feature exists. You can simply add IF NOT EXISTS to the CREATE TABLE statement: CREATETABLEIFNOTEXISTStable_name(column_name data_type); For earlier versions, one workaround is to use a function. But if you are creating a function to create a table if it doesn’...
--定义临时function,用于导出到mysql add jar /opt/local/hive/lib/hive-contrib-2.3..jar; add jar /opt/local/hive/lib/mysql-connector-java-5.1.-bin.jar; CREATE TEMPORARY FUNCTION dboutput AS 'org.apache.hadoop.hive.contrib.genericudf.example.GenericUDFDBOutput'; ...
PostgreSQL- How to Create Database using Command Line In order to create a database, the PostgreSQL server must be up and running. The syntax to create database is: CREATE DATABASE database_name; There are many options you can use while creating a database. ...
Example: Convert script.sql file from Oracle to openGauss ./sqlines -s=oracle -t=opengauss -in=script.sql 参数说明: 参数值域功能-?-帮助菜单-s[ oracle | mysql | postgresql ]Source 数据库-t[ opengauss ]Target 数据库-inFILE_PATH输入文件-out[ FILE_PATH | /* empty */]输出文件,不指定时输...