{
  "id": "cloud/azure-sql-connection-string-format-invalid",
  "signature": "System.InvalidOperationException: The ConnectionString 'DefaultConnection' has an invalid format. Expected format: 'Server=tcp:myserver.database.windows.net,1433;Database=mydb;User ID=myuser;Password=mypassword;Encrypt=True;TrustServerCertificate=False;'",
  "signature_zh": "System.InvalidOperationException：连接字符串 'DefaultConnection' 的格式无效。预期格式：'Server=tcp:myserver.database.windows.net,1433;Database=mydb;User ID=myuser;Password=mypassword;Encrypt=True;TrustServerCertificate=False;'",
  "regex": "The ConnectionString 'DefaultConnection' has an invalid format\\. Expected format: 'Server=tcp:",
  "domain": "cloud",
  "category": "config_error",
  "subcategory": null,
  "root_cause": "The connection string provided for Azure SQL Database does not follow the required format, often due to missing keywords like 'Server', 'Database', or 'User ID', or using incorrect separators.",
  "root_cause_type": "generic",
  "root_cause_zh": "为 Azure SQL 数据库提供的连接字符串未遵循所需的格式，通常是由于缺少 'Server'、'Database' 或 'User ID' 等关键字，或使用了错误的分隔符。",
  "versions": [
    {
      "version": "Microsoft.Data.SqlClient 5.1.0",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "System.Data.SqlClient 4.8.5",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": ".NET 8",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": ".NET Framework 4.8",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "JSON requires proper string escaping; trailing semicolons or line breaks break parsing. The runtime expects a single line string.",
      "fail_rate": 0.8,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Azure SQL requires the 'tcp:' prefix for the server name to enforce TCP/IP connection; omitting it causes format rejection.",
      "fail_rate": 0.7,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "Construct the connection string exactly as: Server=tcp:yourserver.database.windows.net,1433;Database=yourdb;User ID=youruser;Password=yourpassword;Encrypt=True;TrustServerCertificate=False;Connection Timeout=30;. Example in appsettings.json: \"DefaultConnection\": \"Server=tcp:myserver.database.windows.net,1433;Database=mydb;User ID=myuser;Password=mypassword;Encrypt=True;TrustServerCertificate=False;\"",
      "success_rate": 0.95,
      "how": "Construct the connection string exactly as: Server=tcp:yourserver.database.windows.net,1433;Database=yourdb;User ID=youruser;Password=yourpassword;Encrypt=True;TrustServerCertificate=False;Connection Timeout=30;. Example in appsettings.json: \"DefaultConnection\": \"Server=tcp:myserver.database.windows.net,1433;Database=mydb;User ID=myuser;Password=mypassword;Encrypt=True;TrustServerCertificate=False;\"",
      "condition": "",
      "sources": []
    },
    {
      "action": "Use Azure SQL connection string builder in code. Example in C#: var builder = new SqlConnectionStringBuilder { DataSource = \"tcp:myserver.database.windows.net,1433\", InitialCatalog = \"mydb\", UserID = \"myuser\", Password = \"mypassword\", Encrypt = true, TrustServerCertificate = false }; var connectionString = builder.ConnectionString;",
      "success_rate": 0.9,
      "how": "Use Azure SQL connection string builder in code. Example in C#: var builder = new SqlConnectionStringBuilder { DataSource = \"tcp:myserver.database.windows.net,1433\", InitialCatalog = \"mydb\", UserID = \"myuser\", Password = \"mypassword\", Encrypt = true, TrustServerCertificate = false }; var connectionString = builder.ConnectionString;",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [
    "Construct the connection string exactly as: Server=tcp:yourserver.database.windows.net,1433;Database=yourdb;User ID=youruser;Password=yourpassword;Encrypt=True;TrustServerCertificate=False;Connection Timeout=30;. Example in appsettings.json: \"DefaultConnection\": \"Server=tcp:myserver.database.windows.net,1433;Database=mydb;User ID=myuser;Password=mypassword;Encrypt=True;TrustServerCertificate=False;\"",
    "Use Azure SQL connection string builder in code. Example in C#: var builder = new SqlConnectionStringBuilder { DataSource = \"tcp:myserver.database.windows.net,1433\", InitialCatalog = \"mydb\", UserID = \"myuser\", Password = \"mypassword\", Encrypt = true, TrustServerCertificate = false }; var connectionString = builder.ConnectionString;"
  ],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": "https://learn.microsoft.com/en-us/azure/azure-sql/database/connect-query-dotnet-core?view=azuresql",
  "official_doc_section": null,
  "error_code": "InvalidOperationException",
  "verification_tier": "ai_generated",
  "confidence": 0.87,
  "fix_success_rate": 0.93,
  "resolvable": "true",
  "first_seen": "2024-01-10",
  "last_confirmed": "2024-06-01",
  "last_updated": "2024-06-01",
  "evidence_count": 1,
  "tags": [],
  "locale": "en",
  "aliases": []
}