IF EXISTS (SELECT 1 FROM information_schema.columns WHERE table_schema='ent' AND table_name='AdsPlatform' AND column_name='Name') THEN UPDATE ent."AdsPlatform" SET "PlatfromSettlementParty"="Name" WHERE "PlatfromSettlementParty" is null; ELSE UPDATE ent."AdsPlatform" SET "PlatfromSettlementPar...
postgresql change table 后端开发 --if cloumn existSELECTEXISTS(SELECT1FROMinformation_schema.columnsWHEREtable_schema='ent'ANDtable_name='AdsPlatform'ANDcolumn_name='Name');--add cloumnALTERTABLEfinance."MappingInfo"ADDCOLUMNIFNOTEXISTS"Active"boolean;UPDATEfinance."MappingInfo"SET"Active"=falsewhere"...
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ALTERTABLEproductsADDCOLUMNdescription text; 默认值为 null。 移除列 ALTERTABLEproductsDROPCOLUMNdescription; 增加限制 表限制 ALTERTABLEproductsADDCHECK(name<>'');ALTERTABLEproductsADDCONSTRAINTsome_nameUNIQUE(product_no);ALTERTABLEproductsADDFOREIGNKEY (product_group_id)REFERENCESproduct_groups; 非空限制 不...
To change or modify the table’s owner in PostgreSQL, use the “ALTER TABLE tab_name OWNER TO new_owner_name;” command. To alter the table’s owner, the user must be a superuser, or he must have the “ALTER TABLE” permissions. In PostgreSQL, the “\dt” command can be used to...
ALTERTABLEtab_nameALTERCOLUMNcol_1TYPEnew_data_type,ALTERCOLUMNcol_2TYPEnew_data_type; Example: How to update data types of several columns using a single command in PostgreSQL? From the snippet shown in step 4 of the previous example, we can observe that the“team_rating”and“team_lead”...
1ALTERTABLE<table-name>CONVERTTOCHARACTERSETutf8COLLATEutf8_bin; Replace<table-name>with the name of a table returned by the second query in theDiagnosissection. If the above fails, use the below instead; 1ALTERTABLE<table-name>CHARACTERSETutf8COLLATEutf8_bin; ...
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[ %Walex.Event{ name: :user, type: :update, source: %WalEx.Event.Source{ name: "WalEx", version: "3.8.0", db: "todos", schema: "public", table: "user", columns: %{ id: "integer", name: "varchar", created_at: "timestamptz" } }, new_record: %{ id: 1234, name: "...
'database-name' = 'yourDatabaseName', -- 需要同步的数据库 'schema-name' = 'yourSchemaName', -- 需要同步的数据表所属schema (支持正则表达式) 'table-name' = 'yourTableName', -- 需要同步的数据表名 (支持正则表达式) '' = 'customslotname' -- 定义一个唯一slot名称,可以包含小写字母、数字...