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HOME > È£½ºÆÃ > »ç¿ë¾È³» > MySQL »ç¿ë¹ý > ±âÃʹ®¹ý     

¾Æ·¡ÀÇ ¼³¸í Áß #Àº ½© ÇÁ·ÒÇÁÆ®¸¦, mysql>Àº MySQL ÇÁ·ÒÇÁÆ®¸¦ ³ªÅ¸³½ °ÍÀÔ´Ï´Ù.


1. MySQL ¸í·É ÀÔ·Â ¹æ½Ä
    ¡Ü ¸í·ÉÀº SQL ¹®°ú ±× µÚ¿¡ ¿À´Â ¼¼¹ÌÄÝ·Ð(;)À¸·Î ÀÌ·ç¾îÁý´Ï´Ù.(¼¼¹ÌÄÝ·ÐÀÌ ÇÊ¿ä ¾ø´Â ¿¹¿Ü°¡ Àֱ⵵ ÇÕ´Ï´Ù. exit °¡ ±× Áß ÇϳªÀÔ´Ï´Ù.)

    ¡Ü °í°´´Ô²²¼­ ¸í·ÉÀ» ³»¸®¸é, mysqlÀº ¼­¹ö·Î ±× ¸í·ÉÀ» º¸³»¾î ½ÇÇàµÇ°Ô Çϰí, ±× °á°ú¸¦ º¸¿©ÁÖ°í ´Ù½Ã ¸í·É ´ë±â »óÅ ÇÁ·ÒÇÁÆ®('mysql>')¸¦ ³ªÅ¸³À´Ï´Ù.

    ¡Ü mysqlÀº Å×À̺í Çü½Ä(Çà°ú ¿­·Î ÀÌ·ç¾îÁø)À¸·Î °á°ú¸¦ º¸¿©ÁÝ´Ï´Ù.
    ù ÇàÀº °¢ ¿­¿¡ ´ëÇÑ ¶óº§À» °®°í ÀÖ½À´Ï´Ù. µÎ¹øÂ° Çà ºÎÅÍ´Â Áú¹®ÀÇ ´äÀÌ ³õÀÔ´Ï´Ù.

    ¸í·É¾î(¿¹¾à¾î)´Â ´ë¹®ÀÚ·Î Çϵç, ¼Ò¹®ÀÚ·Î ÇÏµç »ó°üÀÌ ¾ø½À´Ï´Ù. ¾Æ·¡ ¼¼°³ÀÇ ¸í·ÉÀº ¸ðµÎ µ¿ÀÏÇÕ´Ï´Ù.

    mysql> SELECT VERSION(), CURRENT_DATE;
    mysql> SELECT version(), current_date;
    mysql> seLect vErSiOn(), current_DATE;

2. Áú¹®Çϱâ
    Áú¹®À» ÇÏ´Â ¸í·É¾î´Â SELECT ÀÔ´Ï´Ù. ÀÌ ¸í·É¾î´Â Å×ÀÌºí¿¡ ÀԷµǾî ÀÖ´Â µ¥ÀÌÅÍ °ªµéÀ» Ãâ·ÂÇØ º¼ ¼ö ÀÖ½À´Ï´Ù.

    (1) ¿øÇÏ´Â ¸í·É¾î¸¦ ÀÔ·ÂÇÕ´Ï´Ù.
    mysql> SELECT NOW();

    (2) ¸í·ÉÀ» ¹Ýµå½Ã ÇÑ ÁÙ¿¡ ´Ù ÀÔ·ÂÇØ¾ß ÇÏ´Â °ÍÀº ¾Æ´Õ´Ï´Ù. ¾Æ·¡¿Í °°ÀÌ ¿©·¯ÁÙ¿¡ ÀÔ·ÂÇØµµ µË´Ï´Ù.
    				mysql> SELECT
    					 -> USER()
    					 -> ,
    					 -> CURRENT_DATE;
    				+-------------------+-------------+
    				| USER()            | CURRENT_DATE|
    				+-------------------+-------------+
    				| sample@localhost  | 2001-12-27  |
    				+-------------------+-------------+
    				

3 Å×ÀÌºí ¸¸µé±â
    (1) ÇöÀç ¸¸µé¾îÁ® ÀÖ´Â Å×À̺íÀÇ ¸ñ·ÏÀ» Ãâ·ÂÇÕ´Ï´Ù.
    mysql> SHOW TABLES;
    Empty set (0.00 sec)

    ÇöÀç »ý¼ºµÇ¾î ÀÖ´Â Å×À̺íÀÌ ¾ø´Ù¸é À§¿Í °°ÀÌ Å×À̺íÀÌ ¾ø´Ù°í ³ª¿É´Ï´Ù.

    (2) pet À̶ó´Â À̸§ÀÇ Å×À̺íÀ» ¸¸µì´Ï´Ù.
    CREATE TABLE ´ÙÀ½¿¡ Å×À̺í À̸§À» ½á ÁÖ°í °ýÈ£ ¾È¿¡ ¿­ÀÇ À̸§°ú ±× ¿­ÀÇ ÀÚ·áÇüÀ» ½°Ç¥·Î ±¸ºÐÇÏ¿© ¿­°ÅÇØ ÁÖ¸é µË´Ï´Ù.
    name, owner, species, sex, birthµîÀÌ ¿­ÀÇ À̸§À̸ç, VARCHAR(20), CHAR(2), DATE°¡ ÀÚ·áÇüÀÔ´Ï´Ù.
    ÀÚ·áÇüÀ̶õ ¸» ±×´ë·Î ÀÚ·áÀÇ ÇüÅÂÀÔ´Ï´Ù. ÀÚ·á´Â ¹®ÀÚ¿­ÀÏ ¼ö ÀÖ°í, ³¯Â¥ÀÏ ¼öµµ ÀÖ°í, ¼ýÀÚÀÏ ¼öµµ ÀÖ½À´Ï´Ù.

    ´ÙÀ½ Ç¥¿Í °°Àº Å×À̺íÀÌ ¸¸µé¾îÁý´Ï´Ù.

    				pet TABLE
    				  ¿­    1¿­   2¿­   3¿­    4¿­   5¿­   6¿­
    				¿­À̸§  name owner species sex  birth death
    
    				mysql> CREATE TABLE pet (name VARCHAR(20), owner VARCHAR(20),
    					 -> species VARCHAR(20), sex CHAR(2), birth DATE, death DATE);
    				
    SHOW TABLES ·Î Å×À̺íÀÌ Àß ¸¸µé¾îÁ³´ÂÁö È®ÀÎÇÕ´Ï´Ù.

    				mysql> SHOW TABLES;
    				+--------------------+
    				|Tables in menagerie |
    				+--------------------+
    				| pet                |
    				+--------------------+
    				

4 Å×ÀÌºí »èÁ¦Çϱâ
    (1) ÇöÀç ¸¸µé¾îÁ® ÀÖ´Â Å×À̺íÀÇ ¸ñ·ÏÀ» Ãâ·ÂÇÕ´Ï´Ù.
    mysql> SHOW TABLES;

    				mysql> SHOW TABLES;
    				+--------------------+
    				|Tables in menagerie |
    				+--------------------+
    				| pet                |
    				+--------------------+
    				| test               |
    				+--------------------+
    				
    (2) ÇöÀç »ý¼ºµÇ¾î ÀÖ´Â Å×À̺í Áß ºÒÇÊ¿äÇÑ Å×À̺íÀ» »èÁ¦ÇÕ´Ï´Ù.

    mysql> drop table »èÁ¦ÇϰíÀÚ ÇÏ´Â Å×À̺í À̸§;
    Å×À̺íÀº »èÁ¦ÇÏ¸é º¹±¸°¡ µÇÁö ¾Ê½À´Ï´Ù. ½Ç¼ö·Î »èÁ¦ÇÏ´Â ÀÏÀÌ ¾øµµ·Ï ÁÖÀÇÇϽñ⠹ٶø´Ï´Ù.

    ¿¹) »èÁ¦ÇϰíÀÚ ÇÏ´Â Å×À̺í À̸§ÀÌ test¶ó¸é : mysql> drop table test;

    SHOW TABLES ·Î Å×À̺íÀÌ Àß »èÁ¦µÇ¾ú´ÂÁö È®ÀÎÇÕ´Ï´Ù.

    				mysql> SHOW TABLES;
    				+--------------------+
    				|Tables in menagerie |
    				+--------------------+
    				| pet                |
    				+--------------------+
    				

5. Å×À̺í·ÎºÎÅÍ Á¤º¸ °Ë»öÇϱâ
    Á¤º¸ °Ë»öÀ» ÇÏ´Â ¸í·É¾î´Â SELECT ÀÔ´Ï´Ù. ÀÌ ¸í·É¾î´Â Å×ÀÌºí¿¡ ÀԷµǾî ÀÖ´Â µ¥ÀÌÅÍ °ªµéÀ» Ãâ·ÂÇØ º¼ ¼ö ÀÖ½À´Ï´Ù.

    (1) my_table ÀÇ ¸ðµç µ¥ÀÌÅ͸¦ Ãâ·ÂÇÕ´Ï´Ù.
    mysql> SELECT * FROM my_table;

    (2) my_table Áß name ÀÌ "È«±æµ¿"ÀÎ »ç¶÷¸¸ Ãâ·ÂÇÕ´Ï´Ù. ¹°·Ð ¿©±â¼­ name Àº my_table ¿¡ ÀÖ´Â ¿­ ÁßÀÇ ÇϳªÀÔ´Ï´Ù.
    mysql> SELECT * FROM my_table WHERE name = "È«±æµ¿";

6. Å×ÀÌºí¿¡ Á¤º¸ ÀÔ·ÂÇϱâ
    (1) ÇϳªÀÇ µ¥ÀÌÅ͸¦ Å×ÀÌºí¿¡ Ãß°¡ÇÏ´Â ¹æ¹ýÀº ¾Æ·¡¿Í °°½À´Ï´Ù. ÀÌ ¶§, values °ª(data1~data6)Àº Å×À̺íÀÇ ¿­°ú ÀÚ·áÇü¿¡ ¸Â°Ô ³ÖÀ¸¸é µË´Ï´Ù.
    				mysql> INSERT INTO my_table
    					 -> VALUES('data1', 'data2', 'data3', 'data4', 'data5', 'data6');
    				

7. ±âŸ ¸í·É¾î
    (1) Á¤º¸ ¼öÁ¤Çϱâ
    ¹®¹ý : UPDATE table_name SET º¯°æÇÒ ¿­="º¯°æÇÒ ³»¿ë" WHERE ã´Â ¿­="ã´Â ¿­ÀÇ µ¥ÀÌÅÍ";
    				mysql> UPDATE pet SET birth="1989-08-31" WHERE name="Bowser";
    				
    (2) »èÁ¦Çϱâ
    Å×À̺íÀÇ ¸ðµç ³»¿ë »èÁ¦ : DELETE FROM table_name;
    where ÀýÀ» ¸¸Á·ÇÏ´Â ºÎºÐ¸¸ »èÁ¦ : DELETE FROM table_name WHERE name="name";
    ÁÖÀÇ : DELETE ¸í·ÉÀº »ó´çÈ÷ À§ÇèÇÕ´Ï´Ù. Çѹø ¸í·ÉÀ» ³»¸®¸é ´Ù½Ã º¹±¸ÇÒ ¼ö ¾øÀ¸¹Ç·Î ÁÖÀÇÇϽñ⠹ٶø´Ï´Ù.
    				mysql> DELETE FROM pet;
    				
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