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Convert SQL Compact Edition database file to SQLite database file
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// === Convert SQL Compact Edition database file to SQLite database file === | |
// Dump SQL Compact Edition data to SQLite compatible SQL file | |
// - Command line tools: https://github.com/ErikEJ/SqlCeToolbox/wiki/Command-line-tools | |
// - ExportSQLCE40.exe "Data Source=D:\Northwind.sdf;" Northwind.sql sqlite | |
// The SQL file created by the SqlCeToolbox contains GUID data as text. | |
// - Connection string with GUID as text: https://www.connectionstrings.com/sqlite/ | |
// Data Source=c:\mydb.db;Version=3;BinaryGUID=False; | |
// - Recommended is to store GUID data as binary instead of text (requires less space) | |
// Use the C# command line application posted below to convert the GUIDs within the SQL file from text to binary | |
// Create new SQLite database file from SQL file | |
// - sqlite3.exe some.db < data.sql | |
internal class Program | |
{ | |
internal static void Main(string[] args) | |
{ | |
Optimize(args[0], args[1]); | |
Console.ReadLine(); | |
} | |
internal static void Optimize(string sourceFile, string targetFile) | |
{ | |
Console.WriteLine($"Source: {sourceFile}"); | |
Console.WriteLine($"Target: {targetFile}"); | |
var lines = File.ReadAllLines(sourceFile); | |
for (int i = 0; i < lines.Length; i++) | |
{ | |
var parts = lines[i].Split(','); | |
for (int j = 0; j < parts.Length; j++) | |
{ | |
bool last = parts[j].EndsWith(");"); | |
Guid guid; | |
var guidPart = parts[j]; | |
if (last) | |
{ | |
guidPart = guidPart.Substring(0, guidPart.Length - 2); | |
} | |
if (Guid.TryParseExact(guidPart.Trim('\''), "D", out guid)) | |
{ | |
parts[j] = string.Format("x'{0}'", BitConverter.ToString(guid.ToByteArray()).Replace("-", "")) + (last ? ");" : ""); | |
} | |
} | |
lines[i] = string.Join(",", parts); | |
Console.WriteLine(lines[i]); | |
} | |
File.WriteAllLines(targetFile, lines); | |
} | |
} |
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