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Á¦¸ñ [Database] RDBMS¿Í SQL
ÀÛ¼ºÀÚ sigmainfo01
ÀÛ¼ºÀÏÀÚ 2021-03-08
RDBMS : Relational Database Management System

µ¥ÀÌÅ͸¦ Å×À̺íÀÇ Çà(column)°ú ¿­(row)°ú °°ÀÌ º¸´Â °ü°è µ¥ÀÌÅÍ ¸ðÇü¿¡ µû¶ó µ¥ÀÌÅͺ£À̽º¸¦ ±¸¼ºÇÏ°í °ü¸®ÇÏ´Â µ¥ÀÌÅͺ£À̽º °ü¸® ½Ã½ºÅÛ

SQL : Structured Query Language

Query, DML, DDL, DCLÀÇ language·Î ±¸¼ºµÇ´Â °ü°è µ¥ÀÌÅͺ£À̽º¿¡¼­ »ç¿ëµÇ´Â ÁúÀǾîÀÇ Ç¥ÁØ

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Query
DBÀÇ µ¥ÀÌÅ͸¦ Á¶È¸Çϴµ¥ »ç¿ëµÇ´Â ¾ð¾î
Å×À̺íÀÇ µ¥ÀÌÅÍ °ªÀ» °¡Á®¿À´Â SELECT±¸¹®ÀÌ ÀÌ¿¡ ¼ÓÇÔ

DML(Data Manipulation Language)
DBÀÇ µ¥ÀÌÅ͸¦ ó¸®ÇØ ÁÖ´Â ¾ð¾î
»õ·Î¿î ÇàÀÇ Ãß°¡(INSERT), »èÁ¦(DELETE), º¯°æ(UPDATE)±¸¹® µîÀÌ ÀÌ¿¡ ¼ÓÇÏ

DDL(Data Definition Language)
µ¥ÀÌÅ͸¦ Á¤ÀÇÇϴµ¥ »ç¿ëµÇ´Â ¾ð¾î
DBÀÇ »ý¼º(CREATE), »èÁ¦(DROP)±¸¹® µîÀÌ ÀÌ¿¡ ¼ÓÇÔ

DCL(Data Control Language)
DBÀÇ µ¥ÀÌÅ͸¦ ÄÁÆ®·Ñ Çϴµ¥ »ç¿ëµÇ´Â ¾ð¾î
±ÇÇѺο©(GRANT)³ª Á¦°Å(REVOKE)±¸¹® µîÀÌ ÀÌ¿¡ ¼ÓÇÔ

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