Hackerrank sql test solutions

• 0 vote277 views1 answer

  Sql change a colum to unique

  SQL
• 1 vote140 views1 answer

  Return size of tables in mysql

  SQL
• 15 votes139 views6 answers

  Psql

  SQL
• 1 vote139 views1 answer

  Where database run

  SQL
• 0 vote92 views1 answer

  Get all stored procedures in sql server

  SQL
• 0 vote151 views1 answer

  Count in sql and diff

  SQL
• 3 votes179 views1 answer

  Sql several or

  SQL
• 27 votes150 views6 answers

  Sql update record

  SQL
• 0 vote137 views1 answer

  Sql select by content lenght

  SQL
• 0 vote133 views1 answer

  Drop all tables db2

  SQL