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PHP implementation can be used to MYSQL,MSSQL,PG database operation class _php skills

This example describes the database operations classes available in MYSQL,MSSQL,PG three databases, and you can easily change the type of your database as long as you make any changes. Share it for your reference. The specific analysis is as follows:

PHP Database Operations Class (available MYSQL,MSSQL,PG)

-Function Manifest Index:-Open: Opening database connection line:71-Close: Closes the database connection line:107-SELECTDB: Select Database line:129-Query: Create queries line:151-Dataseek: Move record pointer line:175-FieldName: Get field name

PG database table interface and data export

Export command- - 5432 - -- inserts-t human_info > D:\human_info_backup.sql testdbCommand descriptionPg_dump: is the backup command that comes with the PG database, and in the bin directory, all execution must be performed in the bin directory.- H:

The PostgreSQL (PG) field is separated by a comma "," to determine if a value is included

If there is a student student tableThe fields in the Student Table have field course fields with 1,2,3,4,5,6,7 7 coursesCREATE TABLE Student(Name varchar (255),Course varchar (255))INSERT into student (name, course)Values (' Zhang San ', ' 1,2,5,7 ')

PG Extract Function Example

PG processing time is very flexible, +-*/both have supportIt's useful to have a extract function in the meantime, let's take a look at a few examples: [code]postgres=# Select Extract (Epoch from ' 1970-01-01 ':: timestamp);Date_part-----------0(1

Django1.6 version of PG database definition manual Upgrade

Django1.7 added the migration feature later, the database-defined upgrade is fully automated, and was previously done through a "South" app. This article discusses the manual update upgrade under 1.6.1, table create and table delete operation,

PG Built-in function __ function

a window function PG is a feature that adds some window functions to the version after 8.4. The window function is to return grouped results for each row in the group, and the aggregate function is to return only one grouping result for each group

Spark SQL queries hive table and writes to PG

Import Java.sql.DriverManagerimport Java.util.Propertiesimport com.zhaopin.tools. {dateutils, Textutils}import org.apache.log4j. {level, Logger}import org.apache.spark.sql.sparksession/** * Created by XiaoYan on 2018/5/21. */object IHRDOWNLOADPG

Net+postgresql practice and the pit-shelter guide

Brief introduction. Net+postgresql (PG) This combination I've been using for a long time, it feels pretty good. But most people talk about it. NET platform, or will think of its "original" matching Microsoft SQL Server (MSSQL), in fact, no MSSQL and

Extended development of ceph management platform Calamari _ PHP Tutorial

Extended development of ceph management platform Calamari. The extended development of the ceph management platform Calamari has not written logs for nearly half a year. maybe you are getting lazy. However, sometimes writing something can help you

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