SQL 用随机数据填充表 [英] SQL Populate table with random data

问题描述

我有一个包含两个字段的表格:

I have a table with two fields:

1. id(UUID) 即主键和
2. 描述(var255)

我想用 SQL 语句插入随机数据.我希望那个描述是随机的.

I want to insert random data with SQL sentence. I would like that description would be something random.

PS:我正在使用 PostgreSQL.

PS: I am using PostgreSQL.

推荐答案

我不知道这是否符合随机描述"的要求，也不清楚是否要生成完整的数据:但是，例如，这会生成 10 条具有连续 id 和随机文本的记录:

I dont know exactly if this fits the requirement for a "random description", and it's not clear if you want to generate the full data: but, for example, this generates 10 records with consecutive ids and random texts:

  test=#  SELECT generate_series(1,10) AS id, md5(random()::text) AS descr;

     id |               descr
    ----+----------------------------------
      1 | 65c141ee1fdeb269d2e393cb1d3e1c09
      2 | 269638b9061149e9228d1b2718cb035e
      3 | 020bce01ba6a6623702c4da1bc6d556e
      4 | 18fad4813efe3dcdb388d7d8c4b6d3b4
      5 | a7859b3bcf7ff11f921ceef58dc1e5b5
      6 | 63691d4a20f7f23843503349c32aa08c
      7 | ca317278d40f2f3ac81224f6996d1c57
      8 | bb4a284e1c53775a02ebd6ec91bbb847
      9 | b444b5ea7966cd76174a618ec0bb9901
     10 | 800495c53976f60641fb4d486be61dc6
    (10 rows)

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