{"id":126558,"date":"2024-03-24T22:55:29","date_gmt":"2024-03-24T13:55:29","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/oracle%e3%81%aelength%e9%96%a2%e6%95%b0%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9\/"},"modified":"2024-03-26T22:50:02","modified_gmt":"2024-03-26T13:50:02","slug":"oracle%e3%81%aelength%e9%96%a2%e6%95%b0%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/oracle%e3%81%aelength%e9%96%a2%e6%95%b0%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9\/","title":{"rendered":"Oracle\u306elength\u95a2\u6570\u306e\u4f7f\u3044\u65b9"},"content":{"rendered":"<p>Oracle\u3067\u306f\u6587\u5b57\u5217\u306e\u9577\u3055\u3092\u53d6\u5f97\u3059\u308b\u306b\u306fLENGTH\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002LENGTH\u95a2\u6570\u306e\u4f7f\u7528\u4f8b\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u6587\u5b57\u5217\u306e\u9577\u3055\u53d6\u5f97\uff1a<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>SELECT LENGTH('Hello World') AS str_length FROM dual;\r\n<\/code><\/pre>\n<p>\u30cd\u30a4\u30c6\u30a3\u30d6\u306b\u65e5\u672c\u8a9e\u3067\u8a00\u3044\u63db\u3048\u3066\u304f\u3060\u3055\u3044\u30021\u3064\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3060\u3051\u3067\u5341\u5206\u3067\u3059:\u51fa\u529b\u304c \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4\u3002<\/p>\n<pre class=\"post-pre\"><code>STR_LENGTH\r\n11\r\n<\/code><\/pre>\n<ol>\n<li>\u30c6\u30fc\u30d6\u30eb\u306e\u7279\u5b9a\u306e\u30ab\u30e9\u30e0\u5185\u306e\u6587\u5b57\u5217\u9577\u3092\u53d6\u5f97\u3059\u308b\uff1a<\/li>\n<\/ol>\n<p>employess\u3068\u3044\u3046\u540d\u306e\u30c6\u30fc\u30d6\u30eb\u306bfirst_name\u3068\u3044\u3046\u5217\u304c\u3042\u308b\u3068\u4eee\u5b9a\u3059\u308b\u3068\u3001\u305d\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u6587\u5b57\u5217\u306e\u9577\u3055\u306f\u4ee5\u4e0b\u306e\u30af\u30a8\u30ea\u3067\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff1a<\/p>\n<pre class=\"post-pre\"><code>SELECT LENGTH(first_name) AS name_length FROM employees;\r\n<\/code><\/pre>\n<p>\u3053\u308c\u306f\u300cemployees\u300d\u30c6\u30fc\u30d6\u30eb\u306e\u300cfirst_name\u300d\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u9577\u3055\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<p>\u6587\u5b57\u6570\u306e\u623b\u308a\u5024\u306f\u30b9\u30da\u30fc\u30b9\u3092\u542b\u307f\u307e\u3059\u306e\u3067\u3001\u30b9\u30da\u30fc\u30b9\u3092\u9664\u3044\u305f\u6587\u5b57\u6570\u3092\u53d6\u5f97\u3057\u305f\u3044\u5834\u5408\u306f\u3001TRIM \u95a2\u6570\u3092\u3054\u5229\u7528\u304f\u3060\u3055\u3044\u3002<\/p>\n<ol>\n<li>\u7a7a\u4ee5\u5916\u306e\u6587\u5b57\u306e\u6570\u3092\u6587\u5b57\u5217\u304b\u3089\u53d6\u5f97\u3059\u308b\uff1a<\/li>\n<\/ol>\n<p>\u6587\u5b57\u5217\u5185\u306e\u7a7a\u767d\u3067\u306a\u3044\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3057\u305f\u3044\u5834\u5408\u306fLENGTHB\u95a2\u6570\u304c\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u95a2\u6570\u306f\u6587\u5b57\u6570\u3067\u306f\u306a\u304f\u30d0\u30a4\u30c8\u6570\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>SELECT LENGTHB('Hello World') AS byte_length FROM dual;\r\n<\/code><\/pre>\n<p>\u3042\u308c\u3092\u65e5\u672c\u8a9e\u306b\u76f4\u8a33\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre class=\"post-pre\"><code>BYTE_LENGTH\r\n11\r\n<\/code><\/pre>\n<p>Oracle\u3067\u306eLENGTH\u95a2\u6570\u306e\u5229\u7528\u4f8b\u3092\u3044\u304f\u3064\u304b\u793a\u3057\u307e\u3059\u3002\u7528\u9014\u306b\u5fdc\u3058\u3066\u95a2\u6570\u3092\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Oracle\u3067\u306f\u6587\u5b57\u5217\u306e\u9577\u3055\u3092\u53d6\u5f97\u3059\u308b\u306b\u306fLENGTH\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002LENGTH\u95a2\u6570\u306e\u4f7f\u7528\u4f8b\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002 \u6587\u5b57\u5217\u306e\u9577\u3055\u53d6\u5f97\uff1a SELECT LENGTH(&#8216;Hello World&#8217;) AS str_ [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-126558","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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