{"id":697,"date":"2022-05-16T03:16:04","date_gmt":"2022-05-15T19:16:04","guid":{"rendered":"https:\/\/fromideatocreation.com\/?p=697"},"modified":"2023-07-02T17:14:28","modified_gmt":"2023-07-02T09:14:28","slug":"15-%e5%80%8b%e4%bd%a0%e4%b8%8d%e6%83%b3%e9%8c%af%e9%81%8e%e7%9a%84%e5%af%a6%e7%94%a8-psql-%e6%8c%87%e4%bb%a4","status":"publish","type":"post","link":"https:\/\/fromideatocreation.com\/?p=697","title":{"rendered":"15 \u500b\u4f60\u4e0d\u60f3\u932f\u904e\u7684\u5be6\u7528 psql \u6307\u4ee4"},"content":{"rendered":"\n<p>\u5728\u672c\u6559\u5b78\u4e2d\uff0c\u6211\u5011\u70ba\u60a8\u63d0\u4f9b\u4e86\u5e38\u7528 psql \u547d\u4ee4\u5217\u8868\uff0c\u53ef\u5e6b\u52a9\u60a8\u66f4\u5feb\u3001\u66f4\u6709\u6548\u5730\u5f9e PostgreSQL \u8cc7\u6599\u5eab\u67e5\u8a62\u6578\u64da\u3002<\/p>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">1. \u9023\u63a5\u5230 PostgreSQL \u8cc7\u6599\u5eab<\/h2>\n\n\n\n<p>\u4ee5\u4e0b\u547d\u4ee4\u9023\u63a5\u5230\u7279\u5b9a\u7528\u6236\u4e0b\u7684\u8cc7\u6599\u5eab\u3002 \u6309\u4e0b <code>Enter<\/code> \u5f8c\uff0cPostgreSQL \u6703\u8a62\u554f\u7528\u6236\u7684\u5bc6\u78bc\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">$ psql -d database -U  user -W\n<\/code><\/pre>\n\n\n\n<p>\u4f8b\u5982\uff0c\u8981\u5728<code>postgres<\/code> \u7528\u6236\u4e0b\u9023\u63a5\u5230 <code>customers<\/code> \u8cc7\u6599\u5eab\uff0c\u8acb\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">$ psql -d customers -U postgres -W\nPassword for user postgres:\ncustomers =#<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u8981\u9023\u63a5\u5230\u4f4d\u65bc\u53e6\u4e00\u53f0\u4e3b\u6a5f\u4e0a\u7684\u8cc7\u6599\u5eab\uff0c\u8acb\u6dfb\u52a0 <code>-h<\/code> \u9078\u9805\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">$ psql -U user -h host \"dbname=db sslmode=require\"<\/code><\/pre>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u5207\u63db\u9023\u63a5\u5230\u65b0\u7684\u8cc7\u6599\u5eab<\/h2>\n\n\n\n<p>\u9023\u63a5\u5230\u8cc7\u6599\u5eab\u5f8c\uff0c\u60a8\u53ef\u4ee5\u5c07\u9023\u63a5\u5207\u63db\u5230\u65b0\u6578\u64da\u5eab\u3002 \u4e4b\u524d\u7684\u9023\u63a5\u5c07\u88ab\u95dc\u9589\u3002 \u5982\u679c\u7701\u7565 <code>user<\/code> \u53c3\u6578\uff0c\u5247\u5047\u5b9a\u70ba\u7576\u524d\u7528\u6236\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">postgres=# \\c dbname username<\/code><\/pre>\n\n\n\n<p>\u8209\u4f8b\u4f86\u8aaa\uff0c\u4ee5\u4e0b\u547d\u4ee4\u9023\u63a5\u5230 postgres \u7528\u6236\u4e0b\u7684 customers \u6578\u64da\u5eab\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">postgres=# \\c customers\nYou are now connected to database \"customers\" as user \"postgres\".\ncustomers=#<\/code><\/pre>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">3. \u5217\u51fa\u53ef\u7528\u7684\u8cc7\u6599\u5eab<\/h2>\n\n\n\n<p>\u8981\u5217\u51fa\u7576\u524d PostgreSQL \u8cc7\u6599\u5eab\u670d\u52d9\u5668\u4e2d\u7684\u6240\u6709\u8cc7\u6599\u5eab\uff0c\u8acb\u4f7f\u7528 <code>\\l<\/code> \u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">postgres=# \\l<\/code><\/pre>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">4. \u5217\u51fa\u53ef\u7528\u7684\u8868\u683c<\/h2>\n\n\n\n<p>\u8981\u5217\u51fa\u7576\u524d\u8cc7\u6599\u5eab\u4e2d\u7684\u6240\u6709\u8868\u683c\uff0c\u8acb\u4f7f\u7528 <code>\\dt<\/code> \u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">postgres=# \\dt<\/code><\/pre>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">5. \u63cf\u8ff0\u8868\u683c<\/h2>\n\n\n\n<p>\u8981\u63cf\u8ff0\u4e00\u500b\u8868\u683c\uff0c\u4f8b\u5982\u5217\u3001\u985e\u578b\u3001\u5217\u7684\u4fee\u98fe\u7b26\u7b49\uff0c\u8acb\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">postgres=# \\d table_name<\/code><\/pre>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">6. \u5217\u51fa\u53ef\u7528\u7684\u67b6\u69cb<\/h2>\n\n\n\n<p>\u8981\u5217\u51fa\u7576\u524d\u9023\u63a5\u7684\u8cc7\u6599\u5eab\u7684\u6240\u6709\u67b6\u69cb\uff0c\u8acb\u4f7f\u7528 <code>\\dn<\/code> \u547d\u4ee4\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">postgres=# \\dn<\/code><\/pre>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">7. \u5217\u51fa\u53ef\u7528\u7684\u51fd\u5f0f<\/h2>\n\n\n\n<p>\u8981\u5217\u51fa\u7576\u524d\u8cc7\u6599\u5eab\u4e2d\u7684\u53ef\u7528\u51fd\u6578\uff0c\u8acb\u4f7f\u7528 <code>\\df<\/code> \u547d\u4ee4\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">postgres=# \\df<\/code><\/pre>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">8. \u5217\u51fa\u53ef\u7528\u8996\u5716<\/h2>\n\n\n\n<p>\u8981\u5217\u51fa\u7576\u524d\u8cc7\u6599\u5eab\u4e2d\u7684\u53ef\u7528\u8996\u5716\uff0c\u8acb\u4f7f\u7528 <code>\\dv<\/code> \u547d\u4ee4\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">postgres=# \\dv<\/code><\/pre>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">9. \u5217\u51fa\u7528\u6236\u53ca\u5176\u89d2\u8272<\/h2>\n\n\n\n<p>\u8981\u5217\u51fa\u6240\u6709\u7528\u6236\u53ca\u5176\u5206\u914d\u89d2\u8272\uff0c\u8acb\u4f7f\u7528 <code>\\du<\/code> \u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">postgres=# \\du<\/code><\/pre>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">10. \u547d\u4ee4\u6b77\u53f2<\/h2>\n\n\n\n<p>\u8981\u986f\u793a\u547d\u4ee4\u6b77\u53f2\u8a18\u9304\uff0c\u8acb\u4f7f\u7528 <code>\\s<\/code> \u547d\u4ee4\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">postgres=# \\s<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u8981\u5c07\u547d\u4ee4\u6b77\u53f2\u4fdd\u5b58\u5230\u6587\u4ef6\u4e2d\uff0c\u5247\u9700\u8981\u5728 <code>\\s<\/code> \u547d\u4ee4\u5f8c\u9762\u6307\u5b9a\u6587\u4ef6\u540d\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">postgres=# \\s filename<\/code><\/pre>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">11. \u5f9e\u6587\u4ef6\u57f7\u884c psql \u547d\u4ee4<\/h2>\n\n\n\n<p>\u5982\u679c\u8981\u5f9e\u6587\u4ef6\u57f7\u884c psql \u547d\u4ee4\uff0c\u8acb\u4f7f\u7528 <code>\\i<\/code> \u547d\u4ee4\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">postgres=# \\i filename<\/code><\/pre>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">12. \u7372\u53d6\u6709\u95dc psql \u547d\u4ee4\u7684\u5e6b\u52a9<\/h2>\n\n\n\n<p>\u8981\u4e86\u89e3\u6240\u6709\u53ef\u7528\u7684 psql \u547d\u4ee4\uff0c\u8acb\u4f7f\u7528 <code>\\?<\/code> \u547d\u4ee4\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">postgres=# \\?<\/code><\/pre>\n\n\n\n<p>\u8981\u7372\u5f97\u6709\u95dc\u7279\u5b9a PostgreSQL \u8a9e\u53e5\u7684\u5e6b\u52a9\uff0c\u8acb\u4f7f\u7528 <code>\\h<\/code> \u547d\u4ee4\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u60f3\u4e86\u89e3\u6709\u95dc <strong>ALTER TABLE <\/strong>\u8a9e\u53e5\u7684\u8a73\u7d30\u4fe1\u606f\uff0c\u8acb\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">postgres=# \\h ALTER TABLE<\/code><\/pre>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">13. \u958b\u555f\u67e5\u8a62\u57f7\u884c\u6642\u9593<\/h2>\n\n\n\n<p>\u8981\u6253\u958b\u67e5\u8a62\u57f7\u884c\u6642\u9593\uff0c\u8acb\u4f7f\u7528<code>\\timing<\/code> \u547d\u4ee4\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">postgres=# \\timing\nTiming is on.\npostgres=# select count(*) from film;\n count\n-------\n  1000\n(1 row)\n\nTime: 1.495 ms\npostgres=#<\/code><\/pre>\n\n\n\n<p>\u60a8\u4f7f\u7528\u76f8\u540c\u7684\u547d\u4ee4 <code>\\timing<\/code> \u5c07\u5176\u95dc\u9589\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">postgres=# \\timing\nTiming is off.\npostgres=#<\/code><\/pre>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">14. \u5207\u63db\u8f38\u51fa\u9078\u9805<\/h2>\n\n\n\n<p>psql \u652f\u6301\u67d0\u4e9b\u985e\u578b\u7684\u8f38\u51fa\u683c\u5f0f\uff0c\u4e26\u5141\u8a31\u60a8\u81ea\u5b9a\u7fa9\u8f38\u51fa\u7684\u683c\u5f0f\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>\\a<\/code> \u547d\u4ee4\u6703\u5207\u63db\u8f38\u51fa\u7684\u683c\u5f0f\uff0c\u5c0d\u9f4a\uff0c\u6216\u8005\u975e\u5c0d\u9f4a\u7684\u3002<\/li>\n\n\n\n<li><code>\\H<\/code> \u547d\u4ee4\u5c07\u8f38\u51fa\u683c\u5f0f\u5316\u70ba HTML \u683c\u5f0f\u3002<\/li>\n<\/ul>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">15. \u96e2\u958b psql<\/h2>\n\n\n\n<p>\u8981\u9000\u51fa psql\uff0c\u8acb\u4f7f\u7528 <code>\\q<\/code> \u547d\u4ee4\u4e26\u6309 <code>enter<\/code> \u9000\u51fa psql\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">postgres=# \\q<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u672c\u6559\u5b78\u4e2d\uff0c\u6211\u5011\u70ba\u60a8\u63d0\u4f9b\u4e86\u5e38\u7528 psql \u547d\u4ee4\u5217\u8868\uff0c\u53ef\u5e6b\u52a9\u60a8\u66f4\u5feb\u3001\u66f4\u6709\u6548\u5730\u5f9e PostgreSQL \u8cc7\u6599\u5eab\u67e5\u8a62\u6578\u64da\u3002<\/p>\n","protected":false},"author":1,"featured_media":1200,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"qubely_global_settings":"","qubely_interactions":"","inline_featured_image":false,"_ti_tpc_template_sync":false,"_ti_tpc_template_id":"","footnotes":""},"categories":[106,135],"tags":[134,125],"class_list":["post-697","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-106","category-135","tag-commands","tag-postgresql"],"acf":[],"aioseo_notices":[],"qubely_featured_image_url":{"full":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2.jpg",860,860,false],"landscape":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-860x750.jpg",860,750,true],"portraits":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-540x320.jpg",540,320,true],"thumbnail":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-150x150.jpg",150,150,true],"medium":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-300x300.jpg",300,300,true],"medium_large":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-768x768.jpg",640,640,true],"large":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2.jpg",640,640,false],"1536x1536":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2.jpg",860,860,false],"2048x2048":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2.jpg",860,860,false],"qubely_landscape":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-860x750.jpg",860,750,true],"qubely_portrait":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-540x320.jpg",540,320,true],"qubely_thumbnail":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-140x100.jpg",140,100,true],"nazare_single_thumb":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-745x500.jpg",745,500,true],"nazare_post_card_thumb":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-480x600.jpg",480,600,true],"nazare_widget_thumb":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-100x100.jpg",100,100,true],"nazare_widget_first_thumb":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-350x206.jpg",350,206,true],"nazare_el_banner_left":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-860x604.jpg",860,604,true],"nazare_el_banner_right":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-560x495.jpg",560,495,true],"nazare_el_post_400x376":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-400x376.jpg",400,376,true],"nazare_el_post_520x460":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-520x460.jpg",520,460,true],"nazare_el_post_500x335":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-500x335.jpg",500,335,true],"nazare_el_post_500x300":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-500x300.jpg",500,300,true],"nazare_el_post_655x640":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-655x640.jpg",655,640,true],"nazare_el_post_500x290":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-500x290.jpg",500,290,true],"nazare_el_post_416x278":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-416x278.jpg",416,278,true],"nazare_el_post_480x425":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-480x425.jpg",480,425,true],"nazare_el_post_635x640":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-635x640.jpg",635,640,true],"nazare_el_post_305x177":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-305x177.jpg",305,177,true],"nazare_el_post_400x400":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-400x400.jpg",400,400,true],"nazare_el_post_400x360":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-400x360.jpg",400,360,true],"nazare_el_post_416x416":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-416x416.jpg",416,416,true],"nazare_el_post_485x430":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-485x430.jpg",485,430,true],"nazare_el_post_700x467":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-700x467.jpg",700,467,true],"nazare_el_post_1000x581":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-860x581.jpg",860,581,true],"nazare_post_1320x605":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-860x605.jpg",860,605,true],"nazare_post_705x565":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/2023\/05\/nft2-705x565.jpg",705,565,true],"nazare_post_400x265":["https:\/\/fromideatocreation.com\/wp-content\/uploads\/202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