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Gunjan Rastogi
2026-05-11 11:39:23 +05:30
parent b63bfa393f
commit b04b0a016b
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# ============================================
# Compare Tables & Columns Across All Databases
# ============================================
# SQL Server Details
$server = "45.114.141.105,21443"
$username = "sqluser"
$password = '!n$Id3cpm4783#'
# Output Files
$outputFile = "C:\Temp\Table_Column_Mismatch_Report.csv"
$distinctTableFile = "C:\Temp\DistinctTables.csv"
# ============================================
# Load SQL Server Module
# ============================================
Import-Module SqlServer -ErrorAction Stop
# ============================================
# Create Temp Folder If Not Exists
# ============================================
$tempFolder = "C:\Temp"
if (!(Test-Path $tempFolder))
{
New-Item -ItemType Directory -Path $tempFolder | Out-Null
}
Write-Host ""
Write-Host "============================================" -ForegroundColor Cyan
Write-Host "Connecting To SQL Server..." -ForegroundColor Cyan
Write-Host "Server : $server" -ForegroundColor Cyan
Write-Host "============================================" -ForegroundColor Cyan
Write-Host ""
# ============================================
# Get All Online User Databases
# ============================================
try
{
$databases = Invoke-Sqlcmd `
-ServerInstance $server `
-Database master `
-Username $username `
-Password $password `
-TrustServerCertificate `
-ConnectionTimeout 60 `
-QueryTimeout 0 `
-Query "
SELECT name
FROM sys.databases
WHERE state = 0
AND database_id > 4
ORDER BY name
"
Write-Host "Databases Loaded Successfully" -ForegroundColor Green
}
catch
{
Write-Host ""
Write-Host "Failed To Connect SQL Server" -ForegroundColor Red
Write-Host $_.Exception.Message -ForegroundColor Red
exit
}
# ============================================
# Store All Table/Column Data
# ============================================
$allTables = @()
# ============================================
# Loop Through Each Database
# ============================================
foreach ($db in $databases)
{
$dbName = $db.name
Write-Host ""
Write-Host "Checking DB : $dbName" -ForegroundColor Yellow
$query = @"
SELECT
'$dbName' AS DatabaseName,
s.name AS SchemaName,
t.name AS TableName,
c.column_id AS ColumnOrder,
c.name AS ColumnName,
ty.name AS DataType,
c.max_length AS MaxLength,
c.precision AS PrecisionValue,
c.scale AS ScaleValue,
c.is_nullable AS IsNullable
FROM sys.tables t
INNER JOIN sys.schemas s
ON t.schema_id = s.schema_id
INNER JOIN sys.columns c
ON t.object_id = c.object_id
INNER JOIN sys.types ty
ON c.user_type_id = ty.user_type_id
ORDER BY s.name, t.name, c.column_id
"@
try
{
$result = Invoke-Sqlcmd `
-ServerInstance $server `
-Database $dbName `
-Username $username `
-Password $password `
-TrustServerCertificate `
-ConnectionTimeout 60 `
-QueryTimeout 0 `
-Query $query
$allTables += $result
Write-Host "SUCCESS : $dbName" -ForegroundColor Green
}
catch
{
Write-Host "FAILED : $dbName" -ForegroundColor Red
Write-Host $_.Exception.Message -ForegroundColor Red
}
}
# ============================================
# Get Distinct Tables
# ============================================
$distinctTables = $allTables |
Select-Object SchemaName, TableName -Unique
Write-Host ""
Write-Host "============================================" -ForegroundColor Cyan
Write-Host "Total Distinct Tables Found : $($distinctTables.Count)" -ForegroundColor Cyan
Write-Host "============================================" -ForegroundColor Cyan
Write-Host ""
# ============================================
# Show Distinct Tables In Console
# ============================================
$distinctTables |
Sort-Object SchemaName, TableName |
Format-Table -AutoSize
# ============================================
# Export Distinct Tables
# ============================================
$distinctTables |
Sort-Object SchemaName, TableName |
Export-Csv $distinctTableFile -NoTypeInformation
Write-Host ""
Write-Host "Distinct Tables Exported :" -ForegroundColor Green
Write-Host $distinctTableFile -ForegroundColor Green
# ============================================
# Compare Table Structures
# ============================================
$mismatchResults = @()
$groupedTables = $allTables | Group-Object SchemaName, TableName
foreach ($tableGroup in $groupedTables)
{
$rows = $tableGroup.Group
# Group Same Table By Database
$dbGroups = $rows | Group-Object DatabaseName
$dbColumnMap = @{}
foreach ($dbGroup in $dbGroups)
{
$dbName = $dbGroup.Name
# Build Structure Signature
$columns = $dbGroup.Group |
Sort-Object ColumnOrder |
ForEach-Object {
"$($_.ColumnName)|" +
"$($_.DataType)|" +
"$($_.MaxLength)|" +
"$($_.PrecisionValue)|" +
"$($_.ScaleValue)|" +
"$($_.IsNullable)"
}
$dbColumnMap[$dbName] = ($columns -join ",")
}
# Compare Structures
$uniqueStructures = $dbColumnMap.Values | Select-Object -Unique
# If Structure Different
if ($uniqueStructures.Count -gt 1)
{
foreach ($dbName in $dbColumnMap.Keys)
{
$tableInfo = $rows | Select-Object -First 1
$mismatchResults += [PSCustomObject]@{
DatabaseName = $dbName
SchemaName = $tableInfo.SchemaName
TableName = $tableInfo.TableName
ColumnStructure = $dbColumnMap[$dbName]
}
}
}
}
# ============================================
# Export Mismatch Report
# ============================================
if ($mismatchResults.Count -gt 0)
{
$mismatchResults |
Sort-Object SchemaName, TableName, DatabaseName |
Export-Csv $outputFile -NoTypeInformation
Write-Host ""
Write-Host "============================================" -ForegroundColor Green
Write-Host "Mismatch Report Generated Successfully" -ForegroundColor Green
Write-Host "============================================" -ForegroundColor Green
Write-Host ""
Write-Host "Mismatch Report File :" -ForegroundColor Green
Write-Host $outputFile -ForegroundColor Green
}
else
{
Write-Host ""
Write-Host "============================================" -ForegroundColor Green
Write-Host "No Table Structure Mismatches Found" -ForegroundColor Green
Write-Host "============================================" -ForegroundColor Green
}
***************
***************
COULNM DO NOT EXITS
***************
***************
# ============================================
# Compare ONLY Mismatch Columns Across All DBs
# ============================================
# SQL Server Details
$server = "45.114.141.105,21443"
$username = "sqluser"
$password = '!n$Id3cpm4783#'
# Output Files
$outputFile = "C:\Temp\Table_Column_Mismatch_Report.csv"
$distinctTableFile = "C:\Temp\DistinctTables.csv"
# ============================================
# Load SQL Server Module
# ============================================
Import-Module SqlServer -ErrorAction Stop
# ============================================
# Create Temp Folder If Not Exists
# ============================================
$tempFolder = "C:\Temp"
if (!(Test-Path $tempFolder))
{
New-Item -ItemType Directory -Path $tempFolder | Out-Null
}
Write-Host ""
Write-Host "============================================" -ForegroundColor Cyan
Write-Host "Connecting To SQL Server..." -ForegroundColor Cyan
Write-Host "Server : $server" -ForegroundColor Cyan
Write-Host "============================================" -ForegroundColor Cyan
Write-Host ""
# ============================================
# Get All Online User Databases
# ============================================
try
{
$databases = Invoke-Sqlcmd `
-ServerInstance $server `
-Database master `
-Username $username `
-Password $password `
-TrustServerCertificate `
-ConnectionTimeout 60 `
-QueryTimeout 0 `
-Query "
SELECT name
FROM sys.databases
WHERE state = 0
AND database_id > 4
ORDER BY name
"
Write-Host "Databases Loaded Successfully" -ForegroundColor Green
}
catch
{
Write-Host ""
Write-Host "Failed To Connect SQL Server" -ForegroundColor Red
Write-Host $_.Exception.Message -ForegroundColor Red
exit
}
# ============================================
# Store All Table/Column Data
# ============================================
$allTables = @()
# ============================================
# Loop Through Each Database
# ============================================
foreach ($db in $databases)
{
$dbName = $db.name
Write-Host ""
Write-Host "Checking DB : $dbName" -ForegroundColor Yellow
$query = @"
SELECT
'$dbName' AS DatabaseName,
s.name AS SchemaName,
t.name AS TableName,
c.column_id AS ColumnOrder,
c.name AS ColumnName,
ty.name AS DataType,
c.max_length AS MaxLength,
c.precision AS PrecisionValue,
c.scale AS ScaleValue,
c.is_nullable AS IsNullable
FROM sys.tables t
INNER JOIN sys.schemas s
ON t.schema_id = s.schema_id
INNER JOIN sys.columns c
ON t.object_id = c.object_id
INNER JOIN sys.types ty
ON c.user_type_id = ty.user_type_id
ORDER BY s.name, t.name, c.column_id
"@
try
{
$result = Invoke-Sqlcmd `
-ServerInstance $server `
-Database $dbName `
-Username $username `
-Password $password `
-TrustServerCertificate `
-ConnectionTimeout 60 `
-QueryTimeout 0 `
-Query $query
$allTables += $result
Write-Host "SUCCESS : $dbName" -ForegroundColor Green
}
catch
{
Write-Host "FAILED : $dbName" -ForegroundColor Red
Write-Host $_.Exception.Message -ForegroundColor Red
}
}
# ============================================
# Get Distinct Tables
# ============================================
$distinctTables = $allTables |
Select-Object SchemaName, TableName -Unique
Write-Host ""
Write-Host "============================================" -ForegroundColor Cyan
Write-Host "Total Distinct Tables Found : $($distinctTables.Count)" -ForegroundColor Cyan
Write-Host "============================================" -ForegroundColor Cyan
Write-Host ""
# ============================================
# Export Distinct Tables
# ============================================
$distinctTables |
Sort-Object SchemaName, TableName |
Export-Csv $distinctTableFile -NoTypeInformation
Write-Host "Distinct Tables Exported :" -ForegroundColor Green
Write-Host $distinctTableFile -ForegroundColor Green
# ============================================
# Compare ONLY Mismatch Columns
# ============================================
$mismatchResults = @()
$groupedTables = $allTables | Group-Object SchemaName, TableName
foreach ($tableGroup in $groupedTables)
{
$rows = $tableGroup.Group
# Get all DBs for this table
$dbGroups = $rows | Group-Object DatabaseName
# Get all unique column names
$allColumnNames = $rows.ColumnName | Select-Object -Unique
foreach ($columnName in $allColumnNames)
{
$columnData = $rows | Where-Object {
$_.ColumnName -eq $columnName
}
$columnStructures = @{}
foreach ($dbGroup in $dbGroups)
{
$dbName = $dbGroup.Name
$col = $columnData | Where-Object {
$_.DatabaseName -eq $dbName
}
if ($col)
{
$structure =
"$($col.DataType)|" +
"$($col.MaxLength)|" +
"$($col.PrecisionValue)|" +
"$($col.ScaleValue)|" +
"$($col.IsNullable)"
}
else
{
$structure = "COLUMN_NOT_EXISTS"
}
$columnStructures[$dbName] = $structure
}
# Compare structures
$uniqueStructures = $columnStructures.Values | Select-Object -Unique
# Only mismatch columns
if ($uniqueStructures.Count -gt 1)
{
foreach ($dbName in $columnStructures.Keys)
{
$tableInfo = $rows | Select-Object -First 1
$mismatchResults += [PSCustomObject]@{
DatabaseName = $dbName
SchemaName = $tableInfo.SchemaName
TableName = $tableInfo.TableName
ColumnName = $columnName
Structure = $columnStructures[$dbName]
}
}
}
}
}
# ============================================
# Export Mismatch Report
# ============================================
if ($mismatchResults.Count -gt 0)
{
$mismatchResults |
Sort-Object SchemaName, TableName, ColumnName, DatabaseName |
Export-Csv $outputFile -NoTypeInformation
Write-Host ""
Write-Host "============================================" -ForegroundColor Green
Write-Host "Mismatch Report Generated Successfully" -ForegroundColor Green
Write-Host "============================================" -ForegroundColor Green
Write-Host ""
Write-Host "Mismatch Report File :" -ForegroundColor Green
Write-Host $outputFile -ForegroundColor Green
}
else
{
Write-Host ""
Write-Host "============================================" -ForegroundColor Green
Write-Host "No Column Mismatches Found" -ForegroundColor Green
Write-Host "============================================" -ForegroundColor Green
}