Question

我在WinXP上使用Firebird 2.5.4。我有一个具有以下结构的表：

CREATE TABLE "MY_TABLE_1"
(
  "ID" "D_ID" NOT NULL,
  ...
  "WHATEVER" VARCHAR(20) CHARACTER SET WIN1250 COLLATE PXW_HUN,
  ...
  CONSTRAINT "C_MY_TABLE_1_U1" UNIQUE ("WHATEVER"),
  PRIMARY KEY ("ID")
);

我想删除“C_MY_TABLE_1_U1”约束：

ALTER TABLE MY_TABLE_1 DROP CONSTRAINT C_MY_TABLE_1_U1;

然后我收到了这个错误：

unsuccessful metadata update
ERASE RDB$RELATION_CONSTRAINTS failed
index unexpectedly deleted
At trigger 'RDB$TRIGGER_19'
At trigger 'RDB$TRIGGER_11'

我在哪里失败？

Answer 1

我添加了

CREATE DOMAIN "D_ID" BIGINT;

因为需要测试ypur脚本并且没有错误（FB 2.5.4）。

您是否可以更具体地了解出现错误的OS / FB版本？

CREATE DOMAIN "D_ID" BIGINT;
CREATE TABLE "MY_TABLE_1"
(
   "ID" "D_ID" NOT NULL,
   "WHATEVER" VARCHAR(20) CHARACTER SET WIN1250 COLLATE PXW_HUN,
   CONSTRAINT "C_MY_TABLE_1_U1" UNIQUE ("WHATEVER"),
   PRIMARY KEY ("ID")
);

ALTER TABLE MY_TABLE_1 DROP CONSTRAINT C_MY_TABLE_1_U1;

Answer 2

数据库已损坏，备份/恢复后我能够删除约束。

Firebird 2.5丢弃约束错误

2 个答案: