StringBuilder sqlBuffer = new StringBuilder();
QuotingStrategy context = adapter.getQuotingStrategy();
sqlBuffer.append("ALTER TABLE ");
sqlBuffer.append(context.quotedFullyQualifiedName(getEntity()));
sqlBuffer.append(" ALTER COLUMN ");
sqlBuffer.append(context.quotedName(getColumn()));
sqlBuffer.append(" ");
sqlBuffer.append(adapter.externalTypesForJdbcType(getColumn().getType())[0]);
if (TypesMapping.supportsLength(getColumn().getType()) && getColumn().getMaxLength() > 0) {
sqlBuffer.append("(");