å?˜ç´”列å??

表å??や相関å??ã?§é™?定ã?§ã??ã?ªã?„文脈ã?§åˆ—ã‚’ã?‚らã‚?ã?™ã?¨ã??ã€?å?˜ç´”列å??ã?Œä½¿ã‚?れã?¾ã?™ã€‚ ã?“ã?®ã‚ˆã?†ã?ªæ–‡è„ˆã?¯ã€?CREATE TABLEæ–‡ã?®åˆ—定義ã?®ã‚ˆã?†ã?ªã€?é™?定ã?®å¿…è¦?ã?Œç„¡ã?„å ´å?ˆã?Œå½“ã?¦ã?¯ã?¾ã‚Šã?¾ã?™ã€‚

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SQL92識別�

例

-- country ã?¯å?˜ç´”列å??ã?§ã?™ã€‚
CREATE TABLE CONTINENT (COUNTRY VARCHAR(26) NOT NULL PRIMARY KEY,
COUNTRY_ISO_CODE CHAR(2), REGION VARCHAR(26))