Firebird 2.5 丢弃约束错误

Question

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

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;

然后我得到这个错误：

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

我哪里失败了？

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)。

您能否更具体地说明 OS/出现错误的 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，backup/restore 我可以删除约束。

Firebird 2.5 丢弃约束错误

Firebird 2.5 drop constraint error

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firebird

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