Oracle SQL¿¡ ÀÖ´Â »ðÀÔ ¿øº» ¿ÀÀÚ ±×¸®°í ¿¬°á

Oracle¿¡¼­´Â, ¿ÀÀÚ¸¦ »ðÀÔÇϰųª 2°³ charater ²ö ´õ ¶Ç´Â ÇÔ²² Ãâ·ÂµÈ SQL °á°ú ¿¬°áÇÏ´Â °ÍÀÌ °¡´ÉÇÏ´Ù. ÀÌ Á¶ÀÛÀº ´ç½ÅÀÌ SQL Áú¹®¿¡ ÀÇÇØ µ¹·Áº¸³»Áø ÀÚ·áÀÇ Ã¼À縦 ±³¹¦È÷ ´Ù·ç´Â °ÍÀ» Çã¿ëÇÑ´Ù.

2 ´Ü´ÜÇÑ ¼öÁ÷ ¸·´ë±â || Åë½Å¼ö´Â 2°³ ÀÌ»ó ²öÀ» ¿¬°áÇÏ´Â »ç¿ëµÈ´Ù. ÀÇ ¿·¿¡, Oracle´Â ¶ÇÇÑ ¼öÁ÷ ¸·´ë±â Åë½Å¼ö¿¡°Ô ´ë¾ÈÀ¸·Î ´Ù¸¸ ¸¸ÀÏ ¿î¿µ ü°è ¶Ç´Â ³×Æ®¿öÅ© À¯Æ¿¸®Æ¼¿¡ ÀÇÇØ ½ÇÇàµÈ ¹ø¿ªÀ» ÅëÁ¦ÇÏ´Â °ÍÀº °ï¶õÇϰųª ºÒ°¡´ÉÇÑ »óȲÀÌ ÀÖÀ¸¸é CONCAT Ư¼º ±â´ÉÀ» Á¦°øÇÑ´Ù. ÀÌ ±â´ÉÀº ´Ù¸¥ ¹®ÀÚÁýÇÕÀ» °¡Áø ȯ°æ »çÀÌ¿¡¼­ À̵¿µÉ ½Åû¿¡¼­ »ç¿ëµÇ¾î¾ß ÇÑ´Ù.

Oracle ÀÇÁö´Â ¿¬°áµÉ ¼ö ÀÖ´Â À¯ÇüÀ¸·Î ÀÚµ¿À¸·Î °¡Ä¡¸¦ ´øÁø´Ù. Oracle´Â ºó (0 ±æÀÌ) ¹®ÀÚ¿­·Î ¿µÀ» ÇØ¼®ÇÏ´Â ¶§, ¼À¼ýÀÚ°¡ ¹«È¿ °æ¿ì¿¡ ÀÌ¸é ¿¬°áÇØ¼­ Ç×»ó ´Ù¸¥ ¼À¼ýÀÚ ±ÍÂøµÈ¤¤´Ù´Â °ÍÀ», ±×·¡¼­ ¿µÀÌ 2°³ÀÇ °ø¹é ¹®ÀÚ¿­ÀÇ ¿¬°á¿¡¼­¸¸ À¯·¡ÇÒ ´Ù´Â °ÍÀ» ÀǹÌÇÏ´Â ¿µÀ» µ¹·Áº¸³»Áö ¾Ê´Â´Ù ´Ù¸¥ ¼À¼ýÀÚ¸¦ °¡Áø 0 ±æÀÌ ¹®ÀÚ¿­À». ¹«È¿ ÀÏÁöµµ ¸ð¸¥ Ç¥Á¤À» ¿¬°áÇϱâ À§ÇÏ¿©´Â, ¸í¹éÇÏ°Ô 0 ±æÀÌ ²öÀ¸·Î Ç¥Á¤À» °³Á¶Çϵµ·Ï NVL ±â´ÉÀ» ÀÌ¿ëÇϽʽÿÀ.

´Ù¸¥ ¹®ÀÚ¿­¿¡ ÀÖ´Â 2°³ÀÇ ²ö °á°ú ¿¬°á. µÎ ¹®ÀÚ¿­ ´Ù datatype ½¡ÀÇ ÀÎ °æ¿ì¿¡, °á°ú¿¡´Â datatype ½¡ÀÌ ÀÖ°í 2000ÀÇ Æ¯¼ºÀ¸·Î Á¦ÇѵȴÙ. ¾î´À °ÍÀÌµç ²öÀÌ datatype VARCHAR2ÀÇ ÀÎ °æ¿ì¿¡, °á°ú¿¡´Â datatype VARCHAR2°¡ ÀÖ°í 4000ÀÇ Æ¯¼ºÀ¸·Î Á¦ÇѵȴÙ. ¹®ÀÚ¿­¿¡ ÀÖ´Â ÈÄ¹Ì °ø¹éÀº ²ö¿¡ °ü°è ¾øÀÌ ¿¬°á¿¡ ÀÇÇØ,' datatypes º¸Á¸ÇÑ´Ù.

¹®ÀÚ »ðÀÔÀ» À§ÇØ, SQL °è»ê¼­¿¡ ÀÖ´Â ´ÜÀÏ ÀÎ¿ë ºÎÈ£ `»çÀÌ¿¡¼­ ²öÀ» µÎ½Ê½Ã¿À.

º¸±â¿Í »ç¿ë¹ý:

Ãß·Á³½ `À̸§ÀºÀÌ´Ù ` || Å×ÀÌºí¿¡¼­ À̸§;

À̸§Àº ÀÌ´Ù whatever_name

¼ö¸¦ ¼±Á¤ÇϽʽÿÀ || `- ` || ¼ö¿¡ ÀÇÇÏ¿© Å×ÀÌºí ¼ø¼­¿¡¼­ ¹¦»ç

1 - ¹¦»ç 1
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Áøº¸ÀûÀÎ »ç¿ë¹ý:

¿¬°á°ú ¹®ÀÚ SQL Áú¹® ¾ð¾îÀÇ ¼¼Æ®¸¦, ƯÈ÷ ¶§ Å×À̺íÀÇ Á¦ºñ¿¡ µ¿ÀÏÇÑ °¡µ¿À» ½ÇÇàÇÏ´Â ÇÊ¿ä ÀÚµ¿À¸·Î »ý¼ºÇϱâ À§ÇÏ¿© »ðÀÔÀ» ÀÌ¿ëÇÏ´Â °ÍÀÌ °¡´ÉÇÏ, i.e ¸¹Àº Å×À̺íÀ» ¶³¾î¶ß¸°. À̰ÍÀ» Çϱâ À§ÇÏ¿©´Â, À¯È¿ÇÑ SQL üÀç¿¡ ÀÖ´Â Áú¹® °á°ú¸¦ Ãâ·ÂÇϵµ·Ï SQL ÀÚ·á Áú¹® ¾ð¾î¸¦ ¹è¿­Çϰí, ÆÄÀÏ¿¡ SQL Áú¹® °á°ú¸¦ °¨À¸½Ê½Ã¿À. ±× ¶§ SQL °è»ê¼­¸¦ Æ÷ÇÔÇÏ´Â ÆÄÀÏÀ» ¼öÇàÇϽʽÿÀ.

º¸±â:

¼±Á¤ÇϽʽÿÀ `Ç϶ô À¯Çü `¸¦ || type_name || `; '

ÀÇÁö´Â »ý¼ºÇÑ´Ù:

Ç϶ô À¯Çü type_name

Àú°ÍÀº SQL*Plus¿¡ @filename¸¦ °¡Áø ÆÄÀÏÀ» ºÒ·¯¼­ ´Þ¸± ¼ö ÀÖ´Ù. ù¹øÂ° SQL °è»ê¼­¿¡¼­ ¼±Á¤µÇ¾î µ¥ÀÌŸº£À̽º¿¡¼­ ¶³¾î¶ß·ÁÁú ¸ðµç À¯Çü.

Áß¿äÇÑ: À̰ÍÀº º¸Àå ¾øÀÌ "ÀÖ´Â ±×´ë·Î" Á¦°øµÇ´Â ±â°è ¹ø¿ª ÆäÀÌÁöÀÌ´Ù. Machine translation may be difficult to understand. Please refer to original English article whenever possible.

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One Response to ¡°Insert Text Literal and Concatenation in Oracle SQL¡±

  1. Arun
    March 2nd, 2007 21:57
    1

    Good article. Got what I was looking for¡¦

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