{"id":154,"date":"2010-10-31T17:36:28","date_gmt":"2010-10-31T15:36:28","guid":{"rendered":"http:\/\/zoharelkayam.wordpress.com\/?p=154"},"modified":"2015-03-02T14:23:57","modified_gmt":"2015-03-02T12:23:57","slug":"%d7%9e%d7%93%d7%a8%d7%99%d7%9a-%d7%9e%d7%a7%d7%95%d7%a6%d7%a8-%d7%91%d7%94%d7%97%d7%9c%d7%98-%d7%9c%d7%a9%d7%99%d7%9e%d7%95%d7%a9-%d7%91-regular-expressions","status":"publish","type":"post","link":"https:\/\/www.realdbamagic.com\/he\/%d7%9e%d7%93%d7%a8%d7%99%d7%9a-%d7%9e%d7%a7%d7%95%d7%a6%d7%a8-%d7%91%d7%94%d7%97%d7%9c%d7%98-%d7%9c%d7%a9%d7%99%d7%9e%d7%95%d7%a9-%d7%91-regular-expressions\/","title":{"rendered":"\u05de\u05d3\u05e8\u05d9\u05da \u05de\u05e7\u05d5\u05e6\u05e8 \u05d1\u05d4\u05d7\u05dc\u05d8 \u05dc\u05e9\u05d9\u05de\u05d5\u05e9 \u05d1-Regular Expressions"},"content":{"rendered":"

\u05db\u05d3\u05d9 \u05dc\u05d4\u05e9\u05ea\u05de\u05e9 \u05d1-Regular Expressions<\/a> \u05e6\u05e8\u05d9\u05da \u05dc\u05d6\u05db\u05d5\u05e8 \u05d0\u05ea \u05d4\u05d7\u05d5\u05e7\u05d9\u05d5\u05ea \u05d4\u05d1\u05d0\u05d4:<\/p>\n

\u05e0\u05e7\u05d5\u05d3\u05d4 (.) \u05de\u05d9\u05d9\u05e6\u05d2\u05ea \u05ea\u05d5 \u05db\u05dc\u05e9\u05d4\u05d5.\n<\/div style=\"direction:lrt\">\n

. = One single char<\/p>\n

\u05e4\u05dc\u05d5\u05e1 (+) \u05de\u05d9\u05d9\u05e6\u05d2 \u05d7\u05d6\u05e8\u05d4 \u05e9\u05dc 1 \u05d0\u05d5 \u05d9\u05d5\u05ea\u05e8 \u05e4\u05e2\u05de\u05d9\u05dd.<\/p>\n

.+ = Single char or more<\/p>\n

\u05e1\u05d9\u05de\u05df \u05e9\u05d0\u05dc\u05d4 (?) \u05de\u05d9\u05d9\u05e6\u05d2 \u05d7\u05d6\u05e8\u05d4 \u05e9\u05dc 0 \u05d0\u05d5 1 \u05e4\u05e2\u05de\u05d9\u05dd.<\/p>\n

.? = Single char or no char at all<\/p>\n

\u05db\u05d5\u05db\u05d1\u05d9\u05ea (*) \u05de\u05d9\u05d9\u05e6\u05d2\u05ea \u05d7\u05d6\u05e8\u05d4 \u05e9\u05dc 0 \u05d0\u05d5 \u05d9\u05d5\u05ea\u05e8 \u05e4\u05e2\u05de\u05d9\u05dd.<\/p>\n

.* = Everything<\/p>\n

\u05e0\u05d9\u05ea\u05df \u05dc\u05d4\u05e9\u05ea\u05de\u05e9 \u05d1\u05de\u05e7\u05e3 (-) \u05db\u05d3\u05d9 \u05dc\u05d9\u05e6\u05d5\u05e8 \u05d8\u05d5\u05d5\u05d7 \u05e9\u05dc \u05ea\u05d5\u05d5\u05d9\u05dd \u05dc\u05d4\u05ea\u05d0\u05de\u05d4. \u05d3\u05d5\u05d2\u05de\u05d4 \u05dc\u05db\u05d6\u05d4 \u05d8\u05d5\u05d5\u05d7 \u05e9\u05dc \u05ea\u05d5\u05d5\u05d9\u05dd \u05d0\u05dc\u05e4\u05d0\u05e0\u05d5\u05de\u05e8\u05d9\u05dd:<\/p>\n

[A-Za-z0-9]<\/p>\n

"\u05db\u05d5\u05d1\u05e2" (^) \u05de\u05d9\u05d9\u05e6\u05d2 \u05d4\u05ea\u05d7\u05dc\u05d4 \u05e9\u05dc \u05de\u05d7\u05e8\u05d5\u05d6\u05ea.<\/p>\n

\u05d3\u05d5\u05dc\u05e8 ($) \u05de\u05d9\u05d9\u05e6\u05d2 \u05e1\u05d5\u05e3 \u05e9\u05dc \u05de\u05d7\u05e8\u05d6\u05d5\u05ea.<\/p>\n

\u05ea\u05d5\u05d5\u05d9 Escape:<\/p>\n

s = space, n = new line, r = CR char (good for DOS new line), \u00a0\\ = , ( = (.<\/p>\n

\u05e7\u05d9\u05e9\u05d5\u05e8\u05d9\u05dd \u05e9\u05d9\u05de\u05d5\u05e9\u05d9\u05d9\u05dd:<\/h3>\n

\nhttp:\/\/www.regular-expressions.info\/reference.html<\/a>
\nhttp:\/\/www.orafaq.com\/node\/2404<\/a>\n<\/p>\n

expression-\u05d9\u05dd \u05e9\u05d9\u05de\u05d5\u05e9\u05d9\u05d9\u05dd (\u05d3\u05d5\u05d2\u05de\u05d0\u05d5\u05ea \u05d3\u05e8\u05da \u05e4\u05e7\u05d5\u05d3\u05d5\u05ea \u05e9\u05dc \u05d0\u05d5\u05e8\u05e7\u05dc):<\/h3>\n

\u05d5\u05d9\u05d3\u05d5\u05d0 \u05db\u05d9 \u05db\u05ea\u05d5\u05d1\u05ea \u05d3\u05d5\u05d0\u05dc \u05ea\u05e7\u05d9\u05e0\u05d4:<\/p>\n

\r\nSQL> select case\r\n  2             when REGEXP_LIKE('moyshe.zichmich@gmail.com',\r\n  3                              '^([[:alnum:]]+(_?|.))[[:alnum:]]*@[[:alnum:]]+(.([[:alnum:]]+)){1,2}$') then\r\n  4              'email okay'\r\n  5             else\r\n  6              'not email'\r\n  7         end as output\r\n  8    from dual;\r\n \r\nOUTPUT\r\n----------\r\nemail okay\r\n<\/pre>\n
\u05d7\u05d9\u05dc\u05d5\u05e5 \u05db\u05ea\u05d5\u05d1\u05ea \u05d0\u05ea\u05e8 \u05d0\u05d9\u05e0\u05d8\u05e8\u05e0\u05d8 \u05de\u05ea\u05d5\u05da \u05de\u05d7\u05e8\u05d5\u05d6\u05ea:<\/p>\n
\r\nSQL> SELECT REGEXP_SUBSTR('http:\/\/www.oracle.com\/pls\/db102\/search?remark=quick_search&format=ranked&word=select',\r\n  2                       'http(s?):\/\/([[:alnum:]]+.?){3,4}\/?') RESULT\r\n  3    FROM dual;\r\n \r\nRESULT\r\n----------------------\r\nhttp:\/\/www.oracle.com\/\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
\u05db\u05d3\u05d9 \u05dc\u05d4\u05e9\u05ea\u05de\u05e9 \u05d1-Regular Expressions \u05e6\u05e8\u05d9\u05da \u05dc\u05d6\u05db\u05d5\u05e8 \u05d0\u05ea \u05d4\u05d7\u05d5\u05e7\u05d9\u05d5\u05ea \u05d4\u05d1\u05d0\u05d4: \u05e0\u05e7\u05d5\u05d3\u05d4 (.) \u05de\u05d9\u05d9\u05e6\u05d2\u05ea \u05ea\u05d5 \u05db\u05dc\u05e9\u05d4\u05d5. . = One single char \u05e4\u05dc\u05d5\u05e1 (+) \u05de\u05d9\u05d9\u05e6\u05d2 \u05d7\u05d6\u05e8\u05d4 \u05e9\u05dc 1 \u05d0\u05d5 \u05d9\u05d5\u05ea\u05e8 \u05e4\u05e2\u05de\u05d9\u05dd. .+ = Single char or more \u05e1\u05d9\u05de\u05df \u05e9\u05d0\u05dc\u05d4 (?) \u05de\u05d9\u05d9\u05e6\u05d2 \u05d7\u05d6\u05e8\u05d4 \u05e9\u05dc 0 \u05d0\u05d5 1 \u05e4\u05e2\u05de\u05d9\u05dd. .? = Single char or no char at all \u05db\u05d5\u05db\u05d1\u05d9\u05ea (*) […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[12],"tags":[85,115],"class_list":["post-154","post","type-post","status-publish","format-standard","hentry","category-12","tag-oracle-2","tag-regular-expression"],"yoast_head":"\n\u05de\u05d3\u05e8\u05d9\u05da \u05de\u05e7\u05d5\u05e6\u05e8 \u05d1\u05d4\u05d7\u05dc\u05d8 \u05dc\u05e9\u05d9\u05de\u05d5\u05e9 \u05d1-Regular Expressions - Real Time DBA Magic<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.realdbamagic.com\/he\/%d7%9e%d7%93%d7%a8%d7%99%d7%9a-%d7%9e%d7%a7%d7%95%d7%a6%d7%a8-%d7%91%d7%94%d7%97%d7%9c%d7%98-%d7%9c%d7%a9%d7%99%d7%9e%d7%95%d7%a9-%d7%91-regular-expressions\/\" \/>\n<meta property=\"og:locale\" content=\"he_IL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u05de\u05d3\u05e8\u05d9\u05da \u05de\u05e7\u05d5\u05e6\u05e8 \u05d1\u05d4\u05d7\u05dc\u05d8 \u05dc\u05e9\u05d9\u05de\u05d5\u05e9 \u05d1-Regular Expressions - Real Time DBA Magic\" \/>\n<meta property=\"og:description\" content=\"\u05db\u05d3\u05d9 \u05dc\u05d4\u05e9\u05ea\u05de\u05e9 \u05d1-Regular Expressions \u05e6\u05e8\u05d9\u05da \u05dc\u05d6\u05db\u05d5\u05e8 \u05d0\u05ea \u05d4\u05d7\u05d5\u05e7\u05d9\u05d5\u05ea \u05d4\u05d1\u05d0\u05d4: \u05e0\u05e7\u05d5\u05d3\u05d4 (.) \u05de\u05d9\u05d9\u05e6\u05d2\u05ea \u05ea\u05d5 \u05db\u05dc\u05e9\u05d4\u05d5. . = One single char \u05e4\u05dc\u05d5\u05e1 (+) \u05de\u05d9\u05d9\u05e6\u05d2 \u05d7\u05d6\u05e8\u05d4 \u05e9\u05dc 1 \u05d0\u05d5 \u05d9\u05d5\u05ea\u05e8 \u05e4\u05e2\u05de\u05d9\u05dd. .+ = Single char or more \u05e1\u05d9\u05de\u05df \u05e9\u05d0\u05dc\u05d4 (?) \u05de\u05d9\u05d9\u05e6\u05d2 \u05d7\u05d6\u05e8\u05d4 \u05e9\u05dc 0 \u05d0\u05d5 1 \u05e4\u05e2\u05de\u05d9\u05dd. .? = Single char or no char at all \u05db\u05d5\u05db\u05d1\u05d9\u05ea (*) […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.realdbamagic.com\/he\/%d7%9e%d7%93%d7%a8%d7%99%d7%9a-%d7%9e%d7%a7%d7%95%d7%a6%d7%a8-%d7%91%d7%94%d7%97%d7%9c%d7%98-%d7%9c%d7%a9%d7%99%d7%9e%d7%95%d7%a9-%d7%91-regular-expressions\/\" \/>\n<meta property=\"og:site_name\" content=\"Real Time DBA Magic\" \/>\n<meta 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\u05e2\u05dc \u05d9\u05d3\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u05d6\u05d4\u05e8 \u05d0\u05dc\u05e7\u05d9\u05d9\u05dd\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u05d6\u05de\u05df \u05e7\u05e8\u05d9\u05d0\u05d4 \u05de\u05d5\u05e2\u05e8\u05da\" \/>\n\t<meta name=\"twitter:data2\" content=\"\u05d3\u05e7\u05d41\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.realdbamagic.com\\\/he\\\/%d7%9e%d7%93%d7%a8%d7%99%d7%9a-%d7%9e%d7%a7%d7%95%d7%a6%d7%a8-%d7%91%d7%94%d7%97%d7%9c%d7%98-%d7%9c%d7%a9%d7%99%d7%9e%d7%95%d7%a9-%d7%91-regular-expressions\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.realdbamagic.com\\\/he\\\/%d7%9e%d7%93%d7%a8%d7%99%d7%9a-%d7%9e%d7%a7%d7%95%d7%a6%d7%a8-%d7%91%d7%94%d7%97%d7%9c%d7%98-%d7%9c%d7%a9%d7%99%d7%9e%d7%95%d7%a9-%d7%91-regular-expressions\\\/\"},\"author\":{\"name\":\"\u05d6\u05d4\u05e8 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