{"id":54608,"date":"2023-06-04T20:31:06","date_gmt":"2023-06-04T20:31:06","guid":{"rendered":"https:\/\/dbtut.com\/?p=54608"},"modified":"2023-06-04T20:37:05","modified_gmt":"2023-06-04T20:37:05","slug":"postgresql-truncate","status":"publish","type":"post","link":"https:\/\/dbtut.com\/index.php\/2023\/06\/04\/postgresql-truncate\/","title":{"rendered":"PostgreSQL Truncate"},"content":{"rendered":"

In today’s article, we will examine the PostgreSQL Truncate command, which deletes the data in the table regardless of any conditions.<\/p>\n

Its general usage is as follows.<\/p>\n

TRUNCATE TABLE table_name;<\/pre>\n
An exclusive lock (other than the Truncate command is not allowed on the table) is set to the table where TRUNCATE is performed.<\/p>\n
If you don’t want this to happen, you can use the DELETE clause.<\/p>\n
Postgresql has given us some goodies when we truncate.<\/p>\n
If there is an identity column in your table, options such as start from scratch when the table is deleted or continue from the last deleted data are offered.<\/p>\n
You can do this with the following parameters.<\/p>\n
RESTART IDENTITY:<\/strong> After the table is truncated, it is written at the end of the TRUNCATE clause to reset the identity value.<\/p>\n
CONTINUE IDENTITY:<\/strong> Resumes the identity value from where it left off.<\/p>\n
CASCADE:<\/strong> If the table has a connection with another table, it clears the data in all of them.<\/p>\n
RESTRICT:<\/strong> If there is a reference key in the table, it cuts the reference key.<\/p>\n
Let’s start our sample application.<\/p>\n
First, let’s see the data in our table.<\/p>\n
<\/p>\n
Let’s clear the data in the table with the TRUNCATE command.<\/p>\n
TRUNCATE TABLE ogrenci_t1;\r\n<\/pre>\n
Our table is truncate, now let’s see if there is data.<\/p>\n
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In today’s article, we will examine the PostgreSQL Truncate command, which deletes the data in the table regardless of any conditions. Its general usage is as follows. TRUNCATE TABLE table_name; An exclusive lock (other than the Truncate command is not allowed on the table) is set to the table where TRUNCATE is performed. If you …<\/p>\n
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<\/div>\n","protected":false},"author":366,"featured_media":54612,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-54608","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-postgres"],"aioseo_notices":[],"yoast_head":"\nPostgreSQL Truncate - Database Tutorials<\/title>\n<meta name=\"description\" content=\"In today's article, we will examine the PostgreSQL Truncate command, which deletes the data in the table regardless of any conditions.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dbtut.com\/index.php\/2023\/06\/04\/postgresql-truncate\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PostgreSQL Truncate - Database Tutorials\" \/>\n<meta property=\"og:description\" content=\"In today's article, we will examine the PostgreSQL Truncate command, which deletes the data in the table regardless of any conditions.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dbtut.com\/index.php\/2023\/06\/04\/postgresql-truncate\/\" \/>\n<meta property=\"og:site_name\" content=\"Database Tutorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-06-04T20:31:06+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-06-04T20:37:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/dbtut.com\/wp-content\/uploads\/2023\/06\/Ekran-goruntusu-2023-06-04-232943.png\" \/>\n\t<meta property=\"og:image:width\" content=\"702\" \/>\n\t<meta property=\"og:image:height\" content=\"313\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Faruk Erdem\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Faruk Erdem\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/dbtut.com\/index.php\/2023\/06\/04\/postgresql-truncate\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/dbtut.com\/index.php\/2023\/06\/04\/postgresql-truncate\/\"},\"author\":{\"name\":\"Faruk Erdem\",\"@id\":\"https:\/\/dbtut.com\/#\/schema\/person\/a7dfc5684c116e536b4e93ee214ccbfb\"},\"headline\":\"PostgreSQL Truncate\",\"datePublished\":\"2023-06-04T20:31:06+00:00\",\"dateModified\":\"2023-06-04T20:37:05+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/dbtut.com\/index.php\/2023\/06\/04\/postgresql-truncate\/\"},\"wordCount\":212,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/dbtut.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/dbtut.com\/index.php\/2023\/06\/04\/postgresql-truncate\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/dbtut.com\/wp-content\/uploads\/2023\/06\/Ekran-goruntusu-2023-06-04-232943.png\",\"articleSection\":[\"PostgreSQL\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/dbtut.com\/index.php\/2023\/06\/04\/postgresql-truncate\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/dbtut.com\/index.php\/2023\/06\/04\/postgresql-truncate\/\",\"url\":\"https:\/\/dbtut.com\/index.php\/2023\/06\/04\/postgresql-truncate\/\",\"name\":\"PostgreSQL Truncate - 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