Question: Instructions: Write a SQL command for each type of join. Also, please describe the effect of each type of join; e.g. This join selects all

Instructions: Write a SQL command for each type of join. Also, please describe the effect of each type of join; e.g. This join selects all rows in Table_A and those rows in Table_B with a matching Object_ID.

Table_A

A_ID

Object_ID

A_Attrib

1111

101

A-1

1112

102

A-2

1113

103

A-3

1114

104

A-4

1115

105

A-5

1116

103

A-3a

Table_B

B_ID

Object_ID

B_Attrib

2221

101

B-1

2222

102

B-2

2223

103

B-3

2224

201

B-4

2225

202

B-5

Instructions: Write a SQL command for each type of join. Also, please

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