All Answers Tagged With primary-key
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- Cannot define PRIMARY KEY constraint on nullable column in table 'Student'.
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- Auto-created primary key used when not defining a primary key type, by default 'django.db.models.AutoField'.
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- The entity type 'IdentityUserLogin<int>' requires a primary key to be defined. If you intended to use a keyless entity type call 'HasNoKey()'
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- Unable to track an entity of type 'ApplicationRole' because primary key property 'Id' is null
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- SQLSTATE[42000]: Syntax error or access violation: 1071 Specified key was too long; max key length is 1000 bytes(Connection: mysql, SQL: alter table `password_reset_tokens` add primary key (`email`))
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- System.InvalidOperationException: The entity type 'City' requires a primary key to be defined. If you intended to use a keyless entity type, call 'HasNoKey' in 'OnModelCreating'. For more information on keyless entity types, see https://go.microsoft.com/f
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- The entity type 'Palavra' requires a primary key to be defined
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- CREATE TABLE PERSONNELS ( PRS_ID int; PRS_Nom varchar(20); PRS_Prenom varchar(25); PRS_DateEmbauche date; PRS_FCT_ID int; PRS_CCH_ID int; PRIMARY KEY (PRS_ID); FOREIGN KEY (PRS_FCT_ID) REFERENCES FONCTIONS(FCT_ID); FORE
- postgresql add primary key multiple columns
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- Get a list of tables and the primary key
- sqlalchemy.exc.ArgumentError: Mapper mapped class Students_of_teacher->students_of_teacher could not assemble any primary key columns for mapped table 'students_of_teacher'
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- Create Table EXAMS ( SUB_NO integer Not Null, STUDENT_NO integer Not Null, MARK decimal (3) Not Null, DATE_TAKEN date Not Null, Primary Key (SUB_NO, STUDENT_NO, DATE_TAKEN) ); The above SQL statement is used to create the EXAMS table. Considering the EXAM
- why is my primary key displaying as none
- CREATE TABLE tblOrderDetails ( OrderID int NULL, ProductID int NULL, UnitPrice float NOT NULL, Quantity smallint NOT NULL, Discount real NOT NULL ); Which of the following SQL statements gives an error while defining Primary Key for the above table? Selec
- SQLite3::SQLException: table "categories" already exists: CREATE TABLE "categories" ("id" integer PRIMARY KEY AUTOINCREMENT NOT NULL
- odoo there is no primary key for referenced table "res_users"
- Duplicate table: 7 ERROR: relation "migrations" already exists (SQL: create table "migrations" ("id" serial primary key not null, "migration" varchar(255) not null, "batch" integer not null))
- the primary key is selected from the
- SQLite3::SQLException: table "categories" already exists: CREATE TABLE "categories" ("id" integer PRIMARY KEY AUTOINCREMENT NOT NULL
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- How can we auto-generate primary key in Hibernate?
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- HOW TO CREATE AUTO ALPHA NUMERIC PRIMARY KEY BY PHP
- The row in table 'cal_event' with primary key '1' has an invalid foreign key: cal_event.event_creator_id contains a value '0' that does not have a corresponding value in auth_user.id.
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- Reorder Table Primary Key Index After Deleting Some Rows
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- Which of the following is wrong?Select one:a.A relation includes a foreign key matching the primary key of other relation is called an insertion anomaly b.If the removal of data in one entity results in the unintentional loss of data in another entity is
- get primary key in get_context_data
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- static Future<void> createTables(sql.Database database) async { await database.execute("""CREATE TABLE data( id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, title TEXT, desc TEXT, createdAt TIMESTAMP NOT NULL DEFAULT CU
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- query to define a PRIMARY KEY constraints on multiple columns, and to allow naming of a PRIMARY KEY constraints.
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- ERROR: column "cont_int_id" named in key does not exist LINE 4: primary key (cont_int_id, int_id) ^
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- Primary key auto incrementing by 1000 instead of 1
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- CREATE TABLE BOOK ( BookID CHAR(20) NOT NULL, Title VARCHAR(30) NOT NULL, PublisherName VARCHAR(20), PRIMARY KEY (BookID) ); Considering SQL statement above, which of the following is wrong? Select one: a. PublisherName can’t be null b. The name of the
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- Create Table EXAMS ( SUB_NO integer Not Null, STUDENT_NO integer Not Null, MARK decimal (3), DATE_TAKEN date, Primary Key (SUB_NO, STUDENT_NO) ); The above SQL statement is used to create the EXAMS table. Considering the EXAMS table; which of the followin
- Create Table EXAMS ( SUB_NO integer Not Null, STUDENT_NO integer Not Null, MARK decimal (3), DATE_TAKEN date Not Null, Primary Key (SUB_NO, STUDENT_NO, DATE_TAKEN) ); The above SQL statement is used to create the EXAMS table. Considering the EXAMS table;
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