diff --git a/Sources/SQLite/Row/SQLiteColumn.swift b/Sources/SQLite/Row/SQLiteColumn.swift
index 09ef4d1..3508861 100644
--- a/Sources/SQLite/Row/SQLiteColumn.swift
+++ b/Sources/SQLite/Row/SQLiteColumn.swift
@@ -1,3 +1,4 @@
+/// Column in a SQLite result set.
 public struct SQLiteColumn {
     /// The table name.
     public var table: String?
diff --git a/Sources/SQLite/Row/SQLiteData.swift b/Sources/SQLite/Row/SQLiteData.swift
index 00bfd5a..c287d61 100644
--- a/Sources/SQLite/Row/SQLiteData.swift
+++ b/Sources/SQLite/Row/SQLiteData.swift
@@ -1,12 +1,30 @@
+/// Supported SQLite data types.
 public enum SQLiteData: Equatable, Encodable {
+    /// `Int`.
     case integer(Int)
+    
+    /// `Double`.
     case float(Double)
+    
+    /// `String`.
     case text(String)
+    
+    /// `Data`.
     case blob(Foundation.Data)
+    
+    /// `NULL`.
     case null
     
+    /// See `Encodable`.
     public func encode(to encoder: Encoder) throws {
-        fatalError()
+        var container = encoder.singleValueContainer()
+        switch self {
+        case .integer(let value): try container.encode(value)
+        case .float(let value): try container.encode(value)
+        case .text(let value): try container.encode(value)
+        case .blob(let value): try container.encode(value)
+        case .null: try container.encodeNil()
+        }
     }
 }
 
diff --git a/Sources/SQLite/Row/SQLiteDataConvertible.swift b/Sources/SQLite/Row/SQLiteDataConvertible.swift
index 78b6b1a..031bd41 100644
--- a/Sources/SQLite/Row/SQLiteDataConvertible.swift
+++ b/Sources/SQLite/Row/SQLiteDataConvertible.swift
@@ -1,5 +1,9 @@
+/// Capable of converting to and from `SQLiteData`.
 public protocol SQLiteDataConvertible {
+    /// Creates `Self` from `SQLiteData`.
     static func convertFromSQLiteData(_ data: SQLiteData) throws -> Self
+    
+    /// Converts `self` to `SQLiteData`.
     func convertToSQLiteData() throws -> SQLiteData
 }
 
diff --git a/Sources/SQLite/Row/SQLiteDataType.swift b/Sources/SQLite/Row/SQLiteDataType.swift
index 2d18ebf..02a7bb3 100644
--- a/Sources/SQLite/Row/SQLiteDataType.swift
+++ b/Sources/SQLite/Row/SQLiteDataType.swift
@@ -1,3 +1,4 @@
+/// Supported SQLite column data types when defining schemas.
 public enum SQLiteDataType: SQLDataType {
     /// See `SQLDataType`.
     public static func dataType(appropriateFor type: Any.Type) -> SQLiteDataType? {
@@ -7,10 +8,19 @@ public enum SQLiteDataType: SQLDataType {
         return nil
     }
     
+    /// `INTEGER`.
     case integer
+    
+    /// `REAL`.
     case real
+    
+    /// `TEXT`.
     case text
+    
+    /// `BLOB`.
     case blob
+    
+    /// `NULL`.
     case null
     
     /// See `SQLSerializable`.
diff --git a/Sources/SQLite/SQL/SQLiteBind.swift b/Sources/SQLite/SQL/SQLiteBind.swift
index ba30acd..b3272dd 100644
--- a/Sources/SQLite/SQL/SQLiteBind.swift
+++ b/Sources/SQLite/SQL/SQLiteBind.swift
@@ -1,3 +1,4 @@
+/// SQLite specific `SQLBind`.
 public struct SQLiteBind: SQLBind {
     /// See `SQLBind`.
     public static func encodable<E>(_ value: E) -> SQLiteBind
@@ -10,11 +11,16 @@ public struct SQLiteBind: SQLBind {
         }
     }
     
+    /// Supported bind values.
     public enum Value {
+        /// A sub-expression.
         case expression(SQLiteExpression)
+        
+        /// Encodable value.
         case encodable(Encodable)
     }
     
+    /// Bind value.
     public var value: Value
     
     /// See `SQLSerializable`.
diff --git a/Sources/SQLite/SQL/SQLiteBoolLiteral.swift b/Sources/SQLite/SQL/SQLiteBoolLiteral.swift
index a7954e2..8972c53 100644
--- a/Sources/SQLite/SQL/SQLiteBoolLiteral.swift
+++ b/Sources/SQLite/SQL/SQLiteBoolLiteral.swift
@@ -1,3 +1,4 @@
+/// SQLite specific `SQLBoolLiteral`.
 public enum SQLiteBoolLiteral: SQLBoolLiteral {
     /// See `SQLBoolLiteral`.
     public static var `true`: SQLiteBoolLiteral {
@@ -9,7 +10,10 @@ public enum SQLiteBoolLiteral: SQLBoolLiteral {
         return ._false
     }
     
+    /// See `SQLBoolLiteral`.
     case _true
+    
+    /// See `SQLBoolLiteral`.
     case _false
     
     /// See `SQLSerializable`.
diff --git a/Sources/SQLite/SQL/SQLiteCollation.swift b/Sources/SQLite/SQL/SQLiteCollation.swift
index 62345ed..4fa51e7 100644
--- a/Sources/SQLite/SQL/SQLiteCollation.swift
+++ b/Sources/SQLite/SQL/SQLiteCollation.swift
@@ -1,3 +1,4 @@
+/// SQLite specific `SQLCollation`.
 public enum SQLiteCollation: SQLCollation {
     /// See `SQLSerializable`.
     public func serialize(_ binds: inout [Encodable]) -> String {
diff --git a/Sources/SQLite/SQL/SQLiteDefaultLiteral.swift b/Sources/SQLite/SQL/SQLiteDefaultLiteral.swift
index 84b50bb..c78b293 100644
--- a/Sources/SQLite/SQL/SQLiteDefaultLiteral.swift
+++ b/Sources/SQLite/SQL/SQLiteDefaultLiteral.swift
@@ -1,3 +1,4 @@
+/// SQLite specific `SQLDefaultLiteral`.
 public struct SQLiteDefaultLiteral: SQLDefaultLiteral {
     /// See `SQLDefaultLiteral`.
     public static var `default`: SQLiteDefaultLiteral {
diff --git a/Sources/SQLite/SQL/SQLiteDropIndex.swift b/Sources/SQLite/SQL/SQLiteDropIndex.swift
index 7130e72..a69f78e 100644
--- a/Sources/SQLite/SQL/SQLiteDropIndex.swift
+++ b/Sources/SQLite/SQL/SQLiteDropIndex.swift
@@ -1,4 +1,6 @@
+/// SQLite specific `SQLDropIndex`.
 public struct SQLiteDropIndex: SQLDropIndex {
+    /// See `SQLDropIndex`.
     public var identifier: SQLiteIdentifier
     
     /// See `SQLSerializable`.
@@ -10,6 +12,7 @@ public struct SQLiteDropIndex: SQLDropIndex {
     }
 }
 
+/// SQLite specific drop index builder.
 public final class SQLiteDropIndexBuilder<Connection>: SQLQueryBuilder
     where Connection: SQLConnection, Connection.Query == SQLiteQuery
 {
@@ -33,6 +36,7 @@ public final class SQLiteDropIndexBuilder<Connection>: SQLQueryBuilder
 
 
 extension SQLConnection where Query == SQLiteQuery {
+    /// Drops an index from a SQLite database.
     public func drop(index identifier: SQLiteIdentifier) -> SQLiteDropIndexBuilder<Self> {
         return .init(SQLiteDropIndex(identifier: identifier), on: self)
     }
diff --git a/Sources/SQLite/SQL/SQLiteFunction.swift b/Sources/SQLite/SQL/SQLiteFunction.swift
index ce868f7..7c1dc13 100644
--- a/Sources/SQLite/SQL/SQLiteFunction.swift
+++ b/Sources/SQLite/SQL/SQLiteFunction.swift
@@ -1,23 +1,32 @@
+/// SQLite specific `SQLFunction`.
 public struct SQLiteFunction: SQLFunction {
+    /// See `SQLFunction`.
     public typealias Argument = GenericSQLFunctionArgument<SQLiteExpression>
     
+    /// `COUNT(*)`.
     public static var count: SQLiteFunction {
         return .init(name: "COUNT", arguments: [.all])
     }
     
+    /// See `SQLFunction`.
     public static func function(_ name: String, _ args: [Argument]) -> SQLiteFunction {
         return .init(name: name, arguments: args)
     }
     
+    /// See `SQLFunction`.
     public let name: String
+    
+    /// See `SQLFunction`.
     public let arguments: [Argument]
     
+    /// See `SQLSerializable`.
     public func serialize(_ binds: inout [Encodable]) -> String {
         return name + "(" + arguments.map { $0.serialize(&binds) }.joined(separator: ", ") + ")"
     }
 }
 
 extension SQLSelectExpression where Expression.Function == SQLiteFunction, Identifier == SQLiteIdentifier {
+    /// `COUNT(*) as ...`.
     public static func count(as alias: SQLiteIdentifier? = nil) -> Self {
         return .expression(.function(.count), alias: alias)
     }
diff --git a/Sources/SQLite/SQL/SQLitePrimaryKey.swift b/Sources/SQLite/SQL/SQLitePrimaryKey.swift
index 0a74de0..7771677 100644
--- a/Sources/SQLite/SQL/SQLitePrimaryKey.swift
+++ b/Sources/SQLite/SQL/SQLitePrimaryKey.swift
@@ -1,3 +1,4 @@
+/// SQLite specific `SQLPrimaryKeyDefault`.
 public enum SQLitePrimaryKeyDefault: SQLPrimaryKeyDefault {
     /// See `SQLPrimaryKey`.
     public static var `default`: SQLitePrimaryKeyDefault {
diff --git a/Sources/SQLite/SQL/SQLiteQuery.swift b/Sources/SQLite/SQL/SQLiteQuery.swift
index 1a61e3a..f15f644 100644
--- a/Sources/SQLite/SQL/SQLiteQuery.swift
+++ b/Sources/SQLite/SQL/SQLiteQuery.swift
@@ -130,6 +130,7 @@ public enum SQLiteQuery: SQLQuery {
 }
 
 extension SQLiteQuery: ExpressibleByStringLiteral {
+    /// See `ExpressibleByStringLiteral`.
     public init(stringLiteral value: String) {
         self = ._raw(value, [])
     }
diff --git a/Sources/SQLite/SQL/SQLiteTable.swift b/Sources/SQLite/SQL/SQLiteTable.swift
index b6e4bdd..46ff4d6 100644
--- a/Sources/SQLite/SQL/SQLiteTable.swift
+++ b/Sources/SQLite/SQL/SQLiteTable.swift
@@ -1 +1,2 @@
+/// SQLite specific `SQLTable`.
 public protocol SQLiteTable: SQLTable { }
diff --git a/Sources/SQLite/Utilities/Deprecated.swift b/Sources/SQLite/Utilities/Deprecated.swift
index 7567f5f..6e9b397 100644
--- a/Sources/SQLite/Utilities/Deprecated.swift
+++ b/Sources/SQLite/Utilities/Deprecated.swift
@@ -1,3 +1 @@
-/// - warning: Deprecated.
-@available(*, deprecated, renamed: "SQLiteDataType")
-public typealias SQLiteFieldType = SQLiteDataType
+/// nothing here... yet
diff --git a/Sources/SQLite/Utilities/SQLiteError.swift b/Sources/SQLite/Utilities/SQLiteError.swift
index a4e37e2..f852062 100644
--- a/Sources/SQLite/Utilities/SQLiteError.swift
+++ b/Sources/SQLite/Utilities/SQLiteError.swift
@@ -8,9 +8,17 @@ import Debugging
 /// Errors that can be thrown while using SQLite
 public struct SQLiteError: Debuggable {
     let problem: Problem
+    
+    /// See `Debuggable`.
     public let reason: String
+    
+    /// See `Debuggable`.
     public var sourceLocation: SourceLocation?
+    
+    /// See `Debuggable`.
     public var stackTrace: [String]
+    
+    /// See `Debuggable`.
     public var identifier: String {
         return problem.rawValue
     }