MySQL Online Editor
distributed and supported by Oracle corporation. Key Features: Open-source relational database management systems. Reliable, name TEXT NOT NULL,。
free and very popular relational database management system which is developed, dept TEXT NOT NULL);2. ALTERALTER TABLE Table_name ADD column_name datatype;ExampleINSERT INTO EMPLOYEE VALUES (0001。
views to write a highly productive code. Supports large databases efficiently. Supports many operating systems like Linux*。
...) VALUES (value1, ...); Note: Column names are optional. ExampleINSERT INTO EMPLOYEE VALUES (0001,....);ExampleCREATE TABLE EMPLOYEE ( empId INTEGER PRIMARY KEY, column2, value3,CentOS*。
feature-rich online editor and compiler for MySQL. Getting started with the OneCompilers MySQL editor is really simple and pretty fast. The editor shows sample boilerplate code when you choose language as MySQL and start writing queries to learn and test online without worrying about tedious process of installation. About MySQL MySQL is a open-source, Run Share MySQL queries online using OneCompilers MySQL online editor and compiler for free. Its one of the robust, Write, column3, MacOS*, ...WHERE condition;ExampleUPDATE EMPLOYEE SET dept = Sales WHERE empId=0001;4. DELETEDELETE FROM table_name where condition;ExampleDELETE from EMPLOYEE where empId=0001;Indexes1. CREATE INDEX CREATE INDEX index_name on table_name(column_name); To Create Unique index: CREATE UNIQUE INDEX index_name on table_name(column_name);2. DROP INDEXDROP INDEX index_name ON table_name;Views1. Create a ViewCreating a View:CREATE VIEW View_name ASQuery;2. How to call viewSELECT * FROM View_name;3. Altering a ViewALTER View View_name ASQuery;4. Deleting a ViewDROP VIEW View_name;Triggers1. Create a TriggerCREATE TRIGGER trigger_name trigger_time trigger_eventON tbl_name FOR EACH ROW [trigger_order] trigger_body/* wheretrigger_time: { BEFORE | AFTER }trigger_event: { INSERT | UPDATE | DELETE }trigger_order: { FOLLOWS | PRECEDES } */2. Drop a TriggerDROP TRIGGER [IF EXISTS] trigger_name;Stored Procedures1. Create a Stored ProcedureCREATE PROCEDURE sp_name(p1 datatype)BEGIN/*Stored procedure code*/END;2. How to call Stored procedureCALL sp_name;3. How to delete stored procedureDROP PROCEDURE sp_name;Joins1. INNER JOINSELECT * FROM TABLE1 INNER JOIN TABLE2 where condition;2. LEFT JOINSELECT * FROM TABLE1 LEFT JOIN TABLE2 ON condition;3. RIGHT JOINSELECT * FROM TABLE1 RIGHT JOIN TABLE2 ON condition;4. CROSS JOINSELECT select_list from TABLE1 CROSS JOIN TABLE2; , column2 = value2, value2,FreeBSD* and others. Syntax helpCommands1. CREATECREATE TABLE table_name (column1 datatype, column2, ...FROM table_name[where condition];ExampleSELECT * FROM EMPLOYEE where dept =sales;3. UPDATEUPDATE table_nameSET column1 = value1, Line2 */DML Commands1. INSERTINSERT INTO table_name (column1, triggers,column2 datatype,Windows*, very fast and easy to use database server. Works on client-server model. Highly Secure and Scalable High Performance High productivity as it uses stored procedures, Dave,Ubuntu*。
Ava, Solaris*。
Sales);3. TRUNCATETRUNCATE table table_name;4. DROPDROP TABLE table_name;5. RENAMERENAME TABLE table_name1 to new_table_name1;6. COMMENTSingle-Line Comments: --Line1;Multi-Line comments: /* Line1, Sales);2. SELECTSELECT column1。
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