Spracherkennung für: .test vermutete Sprache: SQL {SQL[156] ABAP[147] Fortran[80]} [Methode: maximale Elemente, drei Dimensionen]
--source include/have_innodb.inc
# Test alter table add column
CREATE TABLE t_8114 (a int) ENGINE = INNODB;
ALTER TABLE t_8114 ADD b INT GENERATED ALWAYS AS (a) VIRTUAL;
SELECT NAME FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE NAME LIKE "%t_8114";
SELECT NAME, POS, MTYPE, PRTYPE, LEN FROM INFORMATION_SCHEMA.INNODB_SYS_COLUMNS WHERE TABLE_ID IN (SELECT TABLE_ID FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE NAME LIKE "%t_8114");
INSERT INTO t_8114 VALUES (9, default);
INSERT INTO t_8114 VALUES (3, default);
INSERT INTO t_8114 VALUES (1, default);
INSERT INTO t_8114 VALUES (5, default);
SELECT * FROM t_8114;
DROP TABLE t_8114;
CREATE TABLE t_8114 (Column_1 CHAR(5) GENERATED ALWAYS AS (PI()+5), Column_2 CHAR(5)) engine=innodb;
SELECT NAME, FLAG, N_COLS FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE NAME LIKE "%t_8114";
SELECT NAME, POS, MTYPE, PRTYPE, LEN FROM INFORMATION_SCHEMA.INNODB_SYS_COLUMNS WHERE TABLE_ID IN (SELECT TABLE_ID FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE NAME LIKE "%t_8114");
INSERT INTO t_8114 VALUES (default, "aa");
INSERT INTO t_8114 VALUES (default, "bb");
INSERT INTO t_8114 VALUES (default, "ee");
INSERT INTO t_8114 VALUES (default, "pp");
SELECT * FROM t_8114;
ALTER TABLE t_8114 DROP Column_1;
SELECT NAME FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE NAME LIKE "%t_8114";
SELECT NAME, POS, MTYPE, PRTYPE, LEN FROM INFORMATION_SCHEMA.INNODB_SYS_COLUMNS WHERE TABLE_ID IN (SELECT TABLE_ID FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE NAME LIKE "%t_8114");
SELECT * FROM t_8114;
DROP TABLE t_8114;
[Dauer der Verarbeitung: 0.9 Sekunden, vorverarbeitet 2026-10-08]
