!124 一些更新和bug

* fix: 代码合并
* feat:支持数据库版本兼容，目前兼容了oracle11g部分特性
* fix: 修改数据同步bug，数据sql里指定修改字段别，导致未正确记录修改字段值
* feat: 数据库迁移支持定时迁移和迁移到sql文件

server/internal/db/dbm/oracle/metadata11.go

@@ -0,0 +1,109 @@
+package oracle
+
+import (
+	"fmt"
+	"mayfly-go/internal/db/dbm/dbi"
+	"mayfly-go/pkg/utils/collx"
+	"strings"
+
+	"github.com/may-fly/cast"
+)
+
+const (
+	ORACLE11_COLUMN_MA_KEY = "ORACLE11_COLUMN_MA"
+)
+
+type OracleMetaData11 struct {
+	OracleMetaData
+}
+
+// 获取列元信息, 如列名等
+func (od *OracleMetaData11) GetColumns(tableNames ...string) ([]dbi.Column, error) {
+	meta := od.dc.GetMetaData()
+	tableName := strings.Join(collx.ArrayMap[string, string](tableNames, func(val string) string {
+		return fmt.Sprintf("'%s'", meta.RemoveQuote(val))
+	}), ",")
+
+	// 如果表数量超过了1000，需要分批查询
+	if len(tableNames) > 1000 {
+		columns := make([]dbi.Column, 0)
+		for i := 0; i < len(tableNames); i += 1000 {
+			end := i + 1000
+			if end > len(tableNames) {
+				end = len(tableNames)
+			}
+			tables := tableNames[i:end]
+			cols, err := od.GetColumns(tables...)
+			if err != nil {
+				return nil, err
+			}
+			columns = append(columns, cols...)
+		}
+		return columns, nil
+	}
+
+	_, res, err := od.dc.Query(fmt.Sprintf(dbi.GetLocalSql(ORACLE_META_FILE, ORACLE11_COLUMN_MA_KEY), tableName))
+	if err != nil {
+		return nil, err
+	}
+
+	columnHelper := meta.GetColumnHelper()
+	columns := make([]dbi.Column, 0)
+	for _, re := range res {
+		column := dbi.Column{
+			TableName:     cast.ToString(re["TABLE_NAME"]),
+			ColumnName:    cast.ToString(re["COLUMN_NAME"]),
+			DataType:      dbi.ColumnDataType(cast.ToString(re["DATA_TYPE"])),
+			CharMaxLength: cast.ToInt(re["CHAR_MAX_LENGTH"]),
+			ColumnComment: cast.ToString(re["COLUMN_COMMENT"]),
+			Nullable:      cast.ToString(re["NULLABLE"]) == "YES",
+			IsPrimaryKey:  cast.ToInt(re["IS_PRIMARY_KEY"]) == 1,
+			IsIdentity:    cast.ToInt(re["IS_IDENTITY"]) == 1,
+			ColumnDefault: cast.ToString(re["COLUMN_DEFAULT"]),
+			NumPrecision:  cast.ToInt(re["NUM_PRECISION"]),
+			NumScale:      cast.ToInt(re["NUM_SCALE"]),
+		}
+
+		columnHelper.FixColumn(&column)
+		columns = append(columns, column)
+	}
+	return columns, nil
+}
+
+func (od *OracleMetaData11) genColumnBasicSql(column dbi.Column) string {
+	meta := od.dc.GetMetaData()
+	colName := meta.QuoteIdentifier(column.ColumnName)
+
+	if column.IsIdentity {
+		// 11g以前的版本 如果是自增，自增列数据类型必须是number，不需要设置默认值和空值，建表后设置自增序列
+		return fmt.Sprintf(" %s NUMBER", colName)
+	}
+
+	nullAble := ""
+	if !column.Nullable {
+		nullAble = " NOT NULL"
+	}
+
+	defVal := ""
+	if column.ColumnDefault != "" {
+		defVal = fmt.Sprintf(" DEFAULT %v", column.ColumnDefault)
+	}
+
+	columnSql := fmt.Sprintf(" %s %s%s%s", colName, column.GetColumnType(), defVal, nullAble)
+	return columnSql
+}
+
+// 11g及以下版本会设置自增序列和触发器
+func (od *OracleMetaData11) GenerateTableOtherDDL(tableInfo dbi.Table, quoteTableName string, columns []dbi.Column) []string {
+	result := make([]string, 0)
+	for _, col := range columns {
+		if col.IsIdentity {
+			seqName := fmt.Sprintf("%s_%s_seq", tableInfo.TableName, col.ColumnName)
+			trgName := fmt.Sprintf("%s_%s_trg", tableInfo.TableName, col.ColumnName)
+			result = append(result, fmt.Sprintf("CREATE SEQUENCE %s START WITH 1 INCREMENT BY 1", seqName))
+			result = append(result, fmt.Sprintf("CREATE OR REPLACE TRIGGER %s BEFORE INSERT ON %s FOR EACH ROW WHEN (NEW.%s IS NULL) BEGIN SELECT %s.nextval INTO :new.%s FROM dual; END", trgName, quoteTableName, col.ColumnName, seqName, col.ColumnName))
+		}
+	}
+
+	return result
+}