//ALTER TABLE employees DROP COLUMN "employee_num";
public override void BuildColumnDropSql(DbObjectChange change, DbColumnInfo column)
{
if (!string.IsNullOrEmpty(column.DefaultExpression))
{
change.AddScript(DbScriptType.ColumnModify, "ALTER TABLE {0} DROP CONSTRAINT \"{1}\";", column.Table.FullName, column.DefaultConstraintName);
}
//Note: the column drop comes after table-rename, so it might be table is already renamed, and we have to get its new name
var tableName = column.Table.Peer.FullName; //new name if renamed
change.AddScript(DbScriptType.ColumnDrop, "ALTER TABLE {0} DROP COLUMN \"{1}\";", tableName, column.ColumnName);
}
public override void BuildColumnModifySql(DbObjectChange change, DbColumnInfo column, DbScriptOptions options = DbScriptOptions.None)
{
if (ShouldResetNullsToDefault(column))
{
BuildColumnSetDefaultValuesSql(change, column);
}
// In Pg you modify column one aspect at a time; setting TYPE and Nullable requires 2 calls
change.AddScript(DbScriptType.ColumnModify,
$"ALTER TABLE {column.Table.FullName} ALTER COLUMN {column.ColumnNameQuoted} TYPE {column.TypeInfo.DbTypeSpec};");
var nullStr = column.Flags.IsSet(DbColumnFlags.Nullable) ? " DROP NOT NULL" : " SET NOT NULL";
change.AddScript(DbScriptType.ColumnSetupComplete, $"ALTER TABLE {column.Table.FullName} ALTER COLUMN {column.ColumnNameQuoted}{nullStr};");
}
public override void BuildCustomTypeAddSql(DbObjectChange change, DbCustomTypeInfo typeInfo)
{
var sqlCreateTemplate = "CREATE TYPE {0} AS TABLE ([Value] Sql_Variant);";
var sqlGrantTemplate = "Grant EXECUTE on TYPE::{0} to {1};";
change.AddScript(DbScriptType.CustomTypeAdd, sqlCreateTemplate, typeInfo.FullName);
if (!string.IsNullOrWhiteSpace(Settings.GrantExecReadToRole))
{
change.AddScript(DbScriptType.CustomTypeAdd, sqlGrantTemplate, typeInfo.FullName, Settings.GrantExecReadToRole);
}
if (!string.IsNullOrWhiteSpace(Settings.GrantExecWriteToRole) && Settings.GrantExecWriteToRole != Settings.GrantExecReadToRole)
{
change.AddScript(DbScriptType.CustomTypeAdd, sqlGrantTemplate, typeInfo.FullName, Settings.GrantExecWriteToRole);
}
}
public override void BuildPrimaryKeyAddSql(DbObjectChange change, DbKeyInfo key)
{
// PK for Identity (Auto-increment) columns is created when table/ID columns is created
if (key.KeyColumns[0].Column.Flags.IsSet(DbColumnFlags.Identity))
{
change.AddScript(DbScriptType.PrimaryKeyAdd, "-- PrimaryKeyAdd empty action");
return;
}
var tn = key.Table.FullName;
var pkFields = key.KeyColumns.GetSqlNameList();
// PK name is always 'PRIMARY'
change.AddScript(DbScriptType.PrimaryKeyAdd, $"ALTER TABLE {tn} ADD CONSTRAINT PRIMARY KEY ({pkFields});");
}
public override void BuildSequenceAddSql(DbObjectChange change, DbSequenceInfo sequence)
{
const string sqlCreateTemplate = "CREATE Sequence {0} AS {1} START WITH {2} INCREMENT BY {3};";
const string sqlGrantTemplate = "Grant UPDATE on {0} to {1};";
change.AddScript(DbScriptType.SequenceAdd, sqlCreateTemplate, sequence.FullName, sequence.DbType.SqlTypeSpec,
sequence.StartValue, sequence.Increment);
//Grant permission to UPDATE
var updateRole = this.Settings.GrantExecWriteToRole;
if (!string.IsNullOrWhiteSpace(updateRole))
{
change.AddScript(DbScriptType.Grant, sqlGrantTemplate, sequence.FullName, updateRole);
}
}
public override void BuildIndexAddSql(DbObjectChange change, DbKeyInfo key)
{
var driver = this.Settings.Driver;
var unique = key.KeyType.IsSet(KeyType.Unique) ? "UNIQUE" : string.Empty;
string clustered = GetClusteredExpression(key);
string indexFields;
if (driver.Supports(DbFeatures.OrderedColumnsInIndexes))
{
indexFields = key.KeyColumns.GetSqlNameListWithOrderSpec();
}
else
{
indexFields = key.KeyColumns.GetSqlNameList();
}
var qKeyName = QuoteName(key.Name);
string includeList = (key.IncludeColumns.Count == 0) ? string.Empty : "INCLUDE (" + key.IncludeColumns.GetSqlNameList() + ")";
string wherePred = (key.Filter == null) ? string.Empty: "WHERE " + key.Filter.DefaultSql;
var script = $@"
CREATE {unique} {clustered} INDEX {qKeyName}
ON {key.Table.FullName} ( {indexFields} )
{includeList}
{wherePred}
;";
var phase = key.KeyType.IsSet(KeyType.Clustered) ? ApplyPhase.Early : ApplyPhase.Default;
change.AddScript(DbScriptType.IndexAdd, phase, script);
}
public virtual void BuildColumnSetDefaultValuesSql(DbObjectChange change, DbColumnInfo column)
{
var fullTableRef = column.Table.FullName;
change.AddScript(DbScriptType.ColumnInit, "UPDATE {0} SET \"{1}\" = {2} WHERE \"{1}\" IS NULL;",
fullTableRef, column.ColumnName, column.TypeInfo.InitExpression);
}
public override void BuildIndexAddSql(DbObjectChange change, DbKeyInfo key)
{
const string CreateIndexTemplate = @"
CREATE {0} {1} INDEX {2}
ON {3} ( {4} )
{5}
{6}
";
var unique = key.KeyType.IsSet(KeyType.Unique) ? "UNIQUE" : string.Empty;
string clustered = GetClusteredExpression(key);
var indexFields = key.KeyColumns.GetSqlNameListWithOrderSpec();
var qKeyName = '"' + key.Name + '"';
string includeList = string.Empty;
if (key.IncludeColumns.Count > 0)
{
includeList = "INCLUDE (" + key.IncludeColumns.GetSqlNameList() + ")";
}
string wherePred = string.Empty;
if (!string.IsNullOrWhiteSpace(key.Filter))
{
wherePred = "WHERE " + key.Filter;
}
var phase = key.KeyType.IsSet(KeyType.Clustered) ? ApplyPhase.Early : ApplyPhase.Default;
change.AddScript(DbScriptType.IndexAdd, phase, CreateIndexTemplate,
unique, clustered, qKeyName, key.Table.FullName, indexFields, includeList, wherePred);
}
public override void BuildColumnSetDefaultValuesSql(DbObjectChange change, DbColumnInfo column)
{
const string sqlUpdateValues = "UPDATE {0} SET \"{1}\" = {2} WHERE \"{1}\" IS NULL;";
var fullTableRef = column.Table.FullName;
change.AddScript(DbScriptType.ColumnInit, sqlUpdateValues, fullTableRef, column.ColumnName, column.TypeInfo.InitExpression);
}
public override void BuildViewAddSql(DbObjectChange change, DbTableInfo view)
{
const string sqlTemplate =
@"CREATE VIEW {0} {1} AS
{2}"; //notice - no ';' at the end, SQL must have it already
// For materialized views add 'With SCHEMABINDING' attribute
var attrs = view.IsMaterializedView ? "WITH SCHEMABINDING" : string.Empty;
change.AddScript(DbScriptType.ViewAdd, sqlTemplate, view.FullName, attrs, view.ViewSql);
const string GrantSelectTemplate = "GRANT SELECT ON {0} TO [{1}];";
if (!string.IsNullOrWhiteSpace(Settings.GrantExecReadToRole))
{
change.AddScript(DbScriptType.Grant, GrantSelectTemplate, view.FullName, Settings.GrantExecReadToRole);
}
}
public override void BuildIndexDropSql(DbObjectChange change, DbKeyInfo key)
{
//for indexes on DB views clustered index must be dropped last and created first
var applyPhase = key.KeyType.IsSet(KeyType.Clustered) ? ApplyPhase.Late : ApplyPhase.Default;
change.AddScript(DbScriptType.IndexDrop, applyPhase, "DROP INDEX \"{0}\" ON {1};", key.Name, key.Table.FullName);
}
public override void BuildPrimaryKeyAddSql(DbObjectChange change, DbKeyInfo key)
{
var pkFields = key.KeyColumns.GetSqlNameList();
var clustered = GetClusteredExpression(key);
change.AddScript(DbScriptType.PrimaryKeyAdd, "ALTER TABLE {0} ADD CONSTRAINT \"{1}\" PRIMARY KEY {2} ({3});", key.Table.FullName, key.Name, clustered, pkFields);
}
public override void BuildViewDropSql(DbObjectChange change, DbTableInfo view)
{
var matzed = view.IsMaterializedView ? "MATERIALIZED" : string.Empty;
change.AddScript(DbScriptType.ViewDrop, "DROP {0} VIEW {1};", matzed, view.FullName);
//base.BuildViewDropSql(change, view);
}
public override void BuildSequenceAddSql(DbObjectChange change, DbSequenceInfo sequence)
{
var start = (sequence.StartValue < 1) ? 1 : sequence.StartValue;
const string sqlTemplate = "CREATE Sequence {0} START WITH {1} INCREMENT BY {2};";
change.AddScript(DbScriptType.SequenceAdd, sqlTemplate, sequence.FullName, start, sequence.Increment);
}
public override void BuildSequenceAddSql(DbObjectChange change, DbSequenceInfo sequence)
{
var start = (sequence.StartValue < 1) ? 1 : sequence.StartValue;
change.AddScript(DbScriptType.SequenceAdd,
$"CREATE Sequence {sequence.FullName} START WITH {start} INCREMENT BY {sequence.Increment};");
}
public override void BuildTableAddSql(DbObjectChange change, DbTableInfo table)
{
const string SqlTemplate = @"CREATE TABLE {0} (" + "\r\n {1} \r\n); ";
var specs = table.Columns.Select(c => GetColumnSpec(c)).ToList();
//Until now it was the same as default impl method in base class. Now we need to add Primary key and Foreign key constraints
//Primary Key
var pk = table.PrimaryKey;
var col0 = pk.KeyColumns[0].Column;
//Identity Primary Key is taken care of in GetColumnSpec
// Note: looks like we need to declare identity PK in GetColumnSpec - SQLite is quite tricky in this way
if (!col0.Flags.IsSet(DbColumnFlags.Identity))
{
var strKeyCols = pk.KeyColumns.GetSqlNameList();
var pkSpec = string.Format("PRIMARY KEY({0})", strKeyCols);
specs.Add(pkSpec);
}
//Foreign keys (ref constraints
foreach (var refC in table.RefConstraints)
{
var strKeyCols = refC.FromKey.KeyColumns.GetSqlNameList();
//find target table
var strPkKeyCols = refC.ToKey.KeyColumns.GetSqlNameList();
var fkSpec = string.Format("FOREIGN KEY({0}) REFERENCES {1}({2})", strKeyCols, refC.ToKey.Table.TableName, strPkKeyCols);
if (refC.CascadeDelete)
{
fkSpec += " ON DELETE CASCADE";
}
specs.Add(fkSpec);
}
//Build final Table statement
var columnSpecs = string.Join("," + Environment.NewLine, specs);
change.AddScript(DbScriptType.TableAdd, SqlTemplate, table.FullName, columnSpecs);
}
public virtual void BuildIndexAddSql(DbObjectChange change, DbKeyInfo key)
{
const string CreateIndexTemplate = @"
CREATE {0} INDEX {1}
ON {2} ( {3} )
{4}
{5}
";
var driver = this.Settings.Driver;
var unique = key.KeyType.IsSet(KeyType.Unique) ? "UNIQUE" : string.Empty;
string indexFields;
if (driver.Supports(DbFeatures.OrderedColumnsInIndexes))
{
indexFields = key.KeyColumns.GetSqlNameListWithOrderSpec();
}
else
{
indexFields = key.KeyColumns.GetSqlNameList();
}
var qKeyName = '"' + key.Name + '"';
string includeList = string.Empty;
if (key.IncludeColumns.Count > 0 && driver.Supports(DbFeatures.IncludeColumnsInIndexes))
{
includeList = "INCLUDE (" + key.IncludeColumns.GetSqlNameList() + ")";
}
string wherePred = string.Empty;
if (!string.IsNullOrWhiteSpace(key.Filter) && driver.Supports(DbFeatures.FilterInIndexes))
{
wherePred = "WHERE " + key.Filter;
}
change.AddScript(DbScriptType.IndexAdd, CreateIndexTemplate, unique, qKeyName, key.Table.FullName, indexFields, includeList, wherePred);
}
public override void BuildTableConstraintDropSql(DbObjectChange change, DbKeyInfo key)
{
if (key.KeyType == Entities.Model.KeyType.PrimaryKey)
{
change.AddScript(DbScriptType.RefConstraintDrop, "ALTER TABLE {0} DROP PRIMARY KEY;", key.Table.FullName);
}
}
public override void BuildSequenceAddSql(DbObjectChange change, DbSequenceInfo sequence)
{
const string sqlCreateTemplate = "CREATE Sequence {0} AS {1} START WITH {2} INCREMENT BY {3};";
const string sqlGrantTemplate = "Grant UPDATE on {0} to {1};";
var typeName = GetIntDbTypeName(sequence.Definition.DataType);
change.AddScript(DbScriptType.SequenceAdd, sqlCreateTemplate, sequence.FullName, typeName,
sequence.StartValue, sequence.Increment);
//Grant permission to UPDATE
var updateRole = this.Settings.GetCustomSetting(MsSqlDbDriver.SettingsKeyGrantExecWriteRole, "public");
if (!string.IsNullOrWhiteSpace(updateRole))
{
change.AddScript(DbScriptType.Grant, sqlGrantTemplate, sequence.FullName, updateRole);
}
}
public override void BuildRefConstraintDropSql(DbObjectChange change, DbRefConstraintInfo dbRefConstraint)
{
var fromKey = dbRefConstraint.FromKey;
var kn = QuoteName(fromKey.Name);
change.AddScript(DbScriptType.RefConstraintDrop, $"ALTER TABLE {fromKey.Table.FullName} DROP FOREIGN KEY {kn};");
}
public override void BuildColumnRenameSql(DbObjectChange change, DbColumnInfo oldColumn, DbColumnInfo newColumn)
{
var colSpec = GetColumnSpec(newColumn, DbScriptOptions.None);
var tn = newColumn.Table.FullName;
change.AddScript(DbScriptType.ColumnRename, $"ALTER TABLE {tn} CHANGE COLUMN {oldColumn.ColumnNameQuoted} {colSpec};");
}
//ALTER TABLE employees DROP COLUMN [employee_pwd];
public virtual void BuildColumnDropSql(DbObjectChange change, DbColumnInfo column)
{
//Note: the column drop comes after table-rename, so it might be table is already renamed, and we have to get its new name
var tableName = column.Table.Peer.FullName; //new name if renamed
change.AddScript(DbScriptType.ColumnDrop, $"ALTER TABLE {tableName} DROP COLUMN {column.ColumnNameQuoted}");
}
public override void BuildViewAddSql(DbObjectChange change, DbTableInfo view)
{
// For materialized views add 'With SCHEMABINDING' attribute
var attrs = view.IsMaterializedView ? "WITH SCHEMABINDING" : string.Empty;
//notice - no ';' at the end, SQL must have it already
var script = $@"CREATE VIEW {view.FullName} {attrs} AS
{view.ViewSql}";
change.AddScript(DbScriptType.ViewAdd, script);
//Grant Select
var execReadRole = Settings.GetCustomSetting(MsSqlDbDriver.SettingsKeyGrantExecReadRole, "public");
if (!string.IsNullOrWhiteSpace(execReadRole))
{
change.AddScript(DbScriptType.Grant, $"GRANT SELECT ON {view.FullName} TO [{execReadRole}];");
}
}
public override void BuildCustomTypeDropSql(DbObjectChange change, DbCustomTypeInfo typeInfo)
{
// We drop only Vita_* automatic types
if (typeInfo.Name.StartsWith("Vita_"))
{
change.AddScript(DbScriptType.CustomTypeDrop, $"DROP TYPE {typeInfo.FullName};");
}
}
public override void BuildColumnModifySql(DbObjectChange change, DbColumnInfo column, DbScriptOptions options = DbScriptOptions.None)
{
var colSpec = GetColumnSpec(column, options);
var tbl = column.Table;
var scriptType = options.IsSet(DbScriptOptions.CompleteColumnSetup) ? DbScriptType.ColumnSetupComplete : DbScriptType.ColumnModify;
change.AddScript(scriptType, $"ALTER TABLE {tbl.FullName} MODIFY COLUMN {colSpec};");
}
public virtual void BuildColumnSetDefaultValuesSql(DbObjectChange change, DbColumnInfo column)
{
var fullTableRef = column.Table.FullName;
var cn = column.ColumnNameQuoted;
var init = column.TypeInfo.TypeDef.ColumnInit;
change.AddScript(DbScriptType.ColumnInit, $"UPDATE {fullTableRef} SET {cn} = {init} WHERE {cn} IS NULL;");
}
// Inject hash value, some servers preserve it, some don't
public virtual void BuildViewAddSql(DbObjectChange change, DbTableInfo view)
{
var viewAddSql =
$@"CREATE VIEW {view.FullName} AS
{view.ViewSql}";
change.AddScript(DbScriptType.ViewAdd, viewAddSql);
}
public virtual void BuildPrimaryKeyAddSql(DbObjectChange change, DbKeyInfo key)
{
var pkFields = key.KeyColumns.GetSqlNameList();
var tname = key.Table.FullName;
var keyName = QuoteName(key.Name);
change.AddScript(DbScriptType.PrimaryKeyAdd, $"ALTER TABLE {tname} ADD CONSTRAINT {keyName} PRIMARY KEY ({pkFields})");
}
public override void BuildPrimaryKeyAddSql(DbObjectChange change, DbKeyInfo key)
{
var pkFields = key.KeyColumns.GetSqlNameList();
var clustered = GetClusteredExpression(key);
var qn = QuoteName(key.Name);
change.AddScript(DbScriptType.PrimaryKeyAdd, $"ALTER TABLE {key.Table.FullName} ADD CONSTRAINT {qn} PRIMARY KEY {clustered} ({pkFields});");
}
public virtual void BuildViewAddSql(DbObjectChange change, DbTableInfo view)
{
const string sqlTemplate =
@"CREATE VIEW {0} AS
{1}"; //no ';' at the end, SQL must have it already
change.AddScript(DbScriptType.ViewAdd, sqlTemplate, view.FullName, view.ViewSql);
}
